Remove parentheses of return.

Since return is inconsistent, I removed unnecessary parentheses and
unified them.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4541)

15 files changed, 223 insertions, 223 deletions

diff --git a/crypto/bio/b_print.c b/crypto/bio/b_print.c
index eeee52e8c1..056de86524 100644
--- a/crypto/bio/b_print.c
+++ b/crypto/bio/b_print.c
@@ -859,7 +859,7 @@ int BIO_printf(BIO *bio, const char *format, ...)
     ret = BIO_vprintf(bio, format, args);
 
     va_end(args);
-    return (ret);
+    return ret;
 }
 
 int BIO_vprintf(BIO *bio, const char *format, va_list args)
@@ -886,7 +886,7 @@ int BIO_vprintf(BIO *bio, const char *format, va_list args)
     } else {
         ret = BIO_write(bio, hugebuf, (int)retlen);
     }
-    return (ret);
+    return ret;
 }
 
 /*
@@ -905,7 +905,7 @@ int BIO_snprintf(char *buf, size_t n, const char *format, ...)
     ret = BIO_vsnprintf(buf, n, format, args);
 
     va_end(args);
-    return (ret);
+    return ret;
 }
 
 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c
index 270d1a5966..b3e89431bd 100644
--- a/crypto/bio/b_sock.c
+++ b/crypto/bio/b_sock.c
@@ -66,7 +66,7 @@ int BIO_get_port(const char *str, unsigned short *port_ptr)
 
     if (str == NULL) {
         BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
-        return (0);
+        return 0;
     }
 
     if (BIO_sock_init() != 1)
@@ -102,9 +102,9 @@ int BIO_sock_error(int sock)
      */
     i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
     if (i < 0)
-        return (get_last_socket_error());
+        return get_last_socket_error();
     else
-        return (j);
+        return j;
 }
 
 # if OPENSSL_API_COMPAT < 0x10100000L
@@ -142,7 +142,7 @@ int BIO_sock_init(void)
             err = WSAGetLastError();
             SYSerr(SYS_F_WSASTARTUP, err);
             BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
-            return (-1);
+            return -1;
         }
     }
 # endif                         /* OPENSSL_SYS_WINDOWS */
@@ -150,7 +150,7 @@ int BIO_sock_init(void)
     extern int _watt_do_exit;
     _watt_do_exit = 0;          /* don't make sock_init() call exit() */
     if (sock_init())
-        return (-1);
+        return -1;
 # endif
 
     return 1;
@@ -201,7 +201,7 @@ int BIO_socket_ioctl(int fd, long type, void *arg)
 #  endif                        /* __DJGPP__ */
     if (i < 0)
         SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error());
-    return (i);
+    return i;
 }
 
 # if OPENSSL_API_COMPAT < 0x10100000L
diff --git a/crypto/bio/bf_buff.c b/crypto/bio/bf_buff.c
index 0b3fe5f104..b90023ae2f 100644
--- a/crypto/bio/bf_buff.c
+++ b/crypto/bio/bf_buff.c
@@ -41,7 +41,7 @@ static const BIO_METHOD methods_buffer = {
 
 const BIO_METHOD *BIO_f_buffer(void)
 {
-    return (&methods_buffer);
+    return &methods_buffer;
 }
 
 static int buffer_new(BIO *bi)
@@ -49,19 +49,19 @@ static int buffer_new(BIO *bi)
     BIO_F_BUFFER_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
 
     if (ctx == NULL)
-        return (0);
+        return 0;
     ctx->ibuf_size = DEFAULT_BUFFER_SIZE;
     ctx->ibuf = OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
     if (ctx->ibuf == NULL) {
         OPENSSL_free(ctx);
-        return (0);
+        return 0;
     }
     ctx->obuf_size = DEFAULT_BUFFER_SIZE;
     ctx->obuf = OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
     if (ctx->obuf == NULL) {
         OPENSSL_free(ctx->ibuf);
         OPENSSL_free(ctx);
-        return (0);
+        return 0;
     }
 
     bi->init = 1;
@@ -75,7 +75,7 @@ static int buffer_free(BIO *a)
     BIO_F_BUFFER_CTX *b;
 
     if (a == NULL)
-        return (0);
+        return 0;
     b = (BIO_F_BUFFER_CTX *)a->ptr;
     OPENSSL_free(b->ibuf);
     OPENSSL_free(b->obuf);
@@ -92,11 +92,11 @@ static int buffer_read(BIO *b, char *out, int outl)
     BIO_F_BUFFER_CTX *ctx;
 
     if (out == NULL)
-        return (0);
+        return 0;
     ctx = (BIO_F_BUFFER_CTX *)b->ptr;
 
     if ((ctx == NULL) || (b->next_bio == NULL))
-        return (0);
+        return 0;
     num = 0;
     BIO_clear_retry_flags(b);
 
@@ -111,7 +111,7 @@ static int buffer_read(BIO *b, char *out, int outl)
         ctx->ibuf_len -= i;
         num += i;
         if (outl == i)
-            return (num);
+            return num;
         outl -= i;
         out += i;
     }
@@ -130,11 +130,11 @@ static int buffer_read(BIO *b, char *out, int outl)
                 if (i < 0)
                     return ((num > 0) ? num : i);
                 if (i == 0)
-                    return (num);
+                    return num;
             }
             num += i;
             if (outl == i)
-                return (num);
+                return num;
             out += i;
             outl -= i;
         }
@@ -148,7 +148,7 @@ static int buffer_read(BIO *b, char *out, int outl)
         if (i < 0)
             return ((num > 0) ? num : i);
         if (i == 0)
-            return (num);
+            return num;
     }
     ctx->ibuf_off = 0;
     ctx->ibuf_len = i;
@@ -163,10 +163,10 @@ static int buffer_write(BIO *b, const char *in, int inl)
     BIO_F_BUFFER_CTX *ctx;
 
     if ((in == NULL) || (inl <= 0))
-        return (0);
+        return 0;
     ctx = (BIO_F_BUFFER_CTX *)b->ptr;
     if ((ctx == NULL) || (b->next_bio == NULL))
-        return (0);
+        return 0;
 
     BIO_clear_retry_flags(b);
  start:
@@ -197,7 +197,7 @@ static int buffer_write(BIO *b, const char *in, int inl)
                 if (i < 0)
                     return ((num > 0) ? num : i);
                 if (i == 0)
-                    return (num);
+                    return num;
             }
             ctx->obuf_off += i;
             ctx->obuf_len -= i;
@@ -219,13 +219,13 @@ static int buffer_write(BIO *b, const char *in, int inl)
             if (i < 0)
                 return ((num > 0) ? num : i);
             if (i == 0)
-                return (num);
+                return num;
         }
         num += i;
         in += i;
         inl -= i;
         if (inl == 0)
-            return (num);
+            return num;
     }
 
     /*
@@ -252,7 +252,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         ctx->obuf_off = 0;
         ctx->obuf_len = 0;
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
     case BIO_CTRL_EOF:
@@ -275,7 +275,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = (long)ctx->obuf_len;
         if (ret == 0) {
             if (b->next_bio == NULL)
-                return (0);
+                return 0;
             ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         }
         break;
@@ -283,7 +283,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = (long)ctx->ibuf_len;
         if (ret == 0) {
             if (b->next_bio == NULL)
-                return (0);
+                return 0;
             ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         }
         break;
@@ -347,7 +347,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         break;
     case BIO_C_DO_STATE_MACHINE:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         BIO_clear_retry_flags(b);
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         BIO_copy_next_retry(b);
@@ -355,7 +355,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
 
     case BIO_CTRL_FLUSH:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         if (ctx->obuf_len <= 0) {
             ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
             break;
@@ -368,7 +368,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
                               &(ctx->obuf[ctx->obuf_off]), ctx->obuf_len);
                 BIO_copy_next_retry(b);
                 if (r <= 0)
-                    return ((long)r);
+                    return (long)r;
                 ctx->obuf_off += r;
                 ctx->obuf_len -= r;
             } else {
@@ -398,14 +398,14 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         break;
     default:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
     }
-    return (ret);
+    return ret;
  malloc_error:
     BIOerr(BIO_F_BUFFER_CTRL, ERR_R_MALLOC_FAILURE);
-    return (0);
+    return 0;
 }
 
 static long buffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
@@ -413,13 +413,13 @@ static long buffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
     long ret = 1;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     default:
         ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int buffer_gets(BIO *b, char *buf, int size)
@@ -450,7 +450,7 @@ static int buffer_gets(BIO *b, char *buf, int size)
             ctx->ibuf_off += i;
             if (flag || size == 0) {
                 *buf = '\0';
-                return (num);
+                return num;
             }
         } else {                /* read another chunk */
 
@@ -461,7 +461,7 @@ static int buffer_gets(BIO *b, char *buf, int size)
                 if (i < 0)
                     return ((num > 0) ? num : i);
                 if (i == 0)
-                    return (num);
+                    return num;
             }
             ctx->ibuf_len = i;
             ctx->ibuf_off = 0;
@@ -471,5 +471,5 @@ static int buffer_gets(BIO *b, char *buf, int size)
 
 static int buffer_puts(BIO *b, const char *str)
 {
-    return (buffer_write(b, str, strlen(str)));
+    return buffer_write(b, str, strlen(str));
 }
diff --git a/crypto/bio/bf_lbuf.c b/crypto/bio/bf_lbuf.c
index 742271fdca..f3b91d9660 100644
--- a/crypto/bio/bf_lbuf.c
+++ b/crypto/bio/bf_lbuf.c
@@ -46,7 +46,7 @@ static const BIO_METHOD methods_linebuffer = {
 
 const BIO_METHOD *BIO_f_linebuffer(void)
 {
-    return (&methods_linebuffer);
+    return &methods_linebuffer;
 }
 
 typedef struct bio_linebuffer_ctx_struct {
@@ -61,11 +61,11 @@ static int linebuffer_new(BIO *bi)
 
     ctx = OPENSSL_malloc(sizeof(*ctx));
     if (ctx == NULL)
-        return (0);
+        return 0;
     ctx->obuf = OPENSSL_malloc(DEFAULT_LINEBUFFER_SIZE);
     if (ctx->obuf == NULL) {
         OPENSSL_free(ctx);
-        return (0);
+        return 0;
     }
     ctx->obuf_size = DEFAULT_LINEBUFFER_SIZE;
     ctx->obuf_len = 0;
@@ -81,7 +81,7 @@ static int linebuffer_free(BIO *a)
     BIO_LINEBUFFER_CTX *b;
 
     if (a == NULL)
-        return (0);
+        return 0;
     b = (BIO_LINEBUFFER_CTX *)a->ptr;
     OPENSSL_free(b->obuf);
     OPENSSL_free(a->ptr);
@@ -96,13 +96,13 @@ static int linebuffer_read(BIO *b, char *out, int outl)
     int ret = 0;
 
     if (out == NULL)
-        return (0);
+        return 0;
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     ret = BIO_read(b->next_bio, out, outl);
     BIO_clear_retry_flags(b);
     BIO_copy_next_retry(b);
-    return (ret);
+    return ret;
 }
 
 static int linebuffer_write(BIO *b, const char *in, int inl)
@@ -111,10 +111,10 @@ static int linebuffer_write(BIO *b, const char *in, int inl)
     BIO_LINEBUFFER_CTX *ctx;
 
     if ((in == NULL) || (inl <= 0))
-        return (0);
+        return 0;
     ctx = (BIO_LINEBUFFER_CTX *)b->ptr;
     if ((ctx == NULL) || (b->next_bio == NULL))
-        return (0);
+        return 0;
 
     BIO_clear_retry_flags(b);
 
@@ -160,7 +160,7 @@ static int linebuffer_write(BIO *b, const char *in, int inl)
                 if (i < 0)
                     return ((num > 0) ? num : i);
                 if (i == 0)
-                    return (num);
+                    return num;
             }
             if (i < ctx->obuf_len)
                 memmove(ctx->obuf, ctx->obuf + i, ctx->obuf_len - i);
@@ -178,7 +178,7 @@ static int linebuffer_write(BIO *b, const char *in, int inl)
                 if (i < 0)
                     return ((num > 0) ? num : i);
                 if (i == 0)
-                    return (num);
+                    return num;
             }
             num += i;
             in += i;
@@ -214,7 +214,7 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
     case BIO_CTRL_RESET:
         ctx->obuf_len = 0;
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
     case BIO_CTRL_INFO:
@@ -224,7 +224,7 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = (long)ctx->obuf_len;
         if (ret == 0) {
             if (b->next_bio == NULL)
-                return (0);
+                return 0;
             ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         }
         break;
@@ -248,7 +248,7 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         break;
     case BIO_C_DO_STATE_MACHINE:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         BIO_clear_retry_flags(b);
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         BIO_copy_next_retry(b);
@@ -256,7 +256,7 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
 
     case BIO_CTRL_FLUSH:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         if (ctx->obuf_len <= 0) {
             ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
             break;
@@ -268,7 +268,7 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
                 r = BIO_write(b->next_bio, ctx->obuf, ctx->obuf_len);
                 BIO_copy_next_retry(b);
                 if (r <= 0)
-                    return ((long)r);
+                    return (long)r;
                 if (r < ctx->obuf_len)
                     memmove(ctx->obuf, ctx->obuf + r, ctx->obuf_len - r);
                 ctx->obuf_len -= r;
@@ -286,14 +286,14 @@ static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
         break;
     default:
         if (b->next_bio == NULL)
-            return (0);
+            return 0;
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
     }
-    return (ret);
+    return ret;
  malloc_error:
     BIOerr(BIO_F_LINEBUFFER_CTRL, ERR_R_MALLOC_FAILURE);
-    return (0);
+    return 0;
 }
 
 static long linebuffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
@@ -301,23 +301,23 @@ static long linebuffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
     long ret = 1;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     default:
         ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int linebuffer_gets(BIO *b, char *buf, int size)
 {
     if (b->next_bio == NULL)
-        return (0);
-    return (BIO_gets(b->next_bio, buf, size));
+        return 0;
+    return BIO_gets(b->next_bio, buf, size);
 }
 
 static int linebuffer_puts(BIO *b, const char *str)
 {
-    return (linebuffer_write(b, str, strlen(str)));
+    return linebuffer_write(b, str, strlen(str));
 }
diff --git a/crypto/bio/bf_nbio.c b/crypto/bio/bf_nbio.c
index 455cdde1c5..1853cb1049 100644
--- a/crypto/bio/bf_nbio.c
+++ b/crypto/bio/bf_nbio.c
@@ -50,7 +50,7 @@ static const BIO_METHOD methods_nbiof = {
 
 const BIO_METHOD *BIO_f_nbio_test(void)
 {
-    return (&methods_nbiof);
+    return &methods_nbiof;
 }
 
 static int nbiof_new(BIO *bi)
@@ -58,7 +58,7 @@ static int nbiof_new(BIO *bi)
     NBIO_TEST *nt;
 
     if ((nt = OPENSSL_zalloc(sizeof(*nt))) == NULL)
-        return (0);
+        return 0;
     nt->lrn = -1;
     nt->lwn = -1;
     bi->ptr = (char *)nt;
@@ -69,7 +69,7 @@ static int nbiof_new(BIO *bi)
 static int nbiof_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     OPENSSL_free(a->ptr);
     a->ptr = NULL;
     a->init = 0;
@@ -84,9 +84,9 @@ static int nbiof_read(BIO *b, char *out, int outl)
     unsigned char n;
 
     if (out == NULL)
-        return (0);
+        return 0;
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
 
     BIO_clear_retry_flags(b);
     if (RAND_bytes(&n, 1) <= 0)
@@ -104,7 +104,7 @@ static int nbiof_read(BIO *b, char *out, int outl)
         if (ret < 0)
             BIO_copy_next_retry(b);
     }
-    return (ret);
+    return ret;
 }
 
 static int nbiof_write(BIO *b, const char *in, int inl)
@@ -115,9 +115,9 @@ static int nbiof_write(BIO *b, const char *in, int inl)
     unsigned char n;
 
     if ((in == NULL) || (inl <= 0))
-        return (0);
+        return 0;
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     nt = (NBIO_TEST *)b->ptr;
 
     BIO_clear_retry_flags(b);
@@ -144,7 +144,7 @@ static int nbiof_write(BIO *b, const char *in, int inl)
             nt->lwn = inl;
         }
     }
-    return (ret);
+    return ret;
 }
 
 static long nbiof_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -152,7 +152,7 @@ static long nbiof_ctrl(BIO *b, int cmd, long num, void *ptr)
     long ret;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     case BIO_C_DO_STATE_MACHINE:
         BIO_clear_retry_flags(b);
@@ -166,7 +166,7 @@ static long nbiof_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static long nbiof_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
@@ -174,25 +174,25 @@ static long nbiof_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
     long ret = 1;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     default:
         ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int nbiof_gets(BIO *bp, char *buf, int size)
 {
     if (bp->next_bio == NULL)
-        return (0);
-    return (BIO_gets(bp->next_bio, buf, size));
+        return 0;
+    return BIO_gets(bp->next_bio, buf, size);
 }
 
 static int nbiof_puts(BIO *bp, const char *str)
 {
     if (bp->next_bio == NULL)
-        return (0);
-    return (BIO_puts(bp->next_bio, str));
+        return 0;
+    return BIO_puts(bp->next_bio, str);
 }
diff --git a/crypto/bio/bf_null.c b/crypto/bio/bf_null.c
index fb1e9c26ff..574fe22884 100644
--- a/crypto/bio/bf_null.c
+++ b/crypto/bio/bf_null.c
@@ -43,7 +43,7 @@ static const BIO_METHOD methods_nullf = {
 
 const BIO_METHOD *BIO_f_null(void)
 {
-    return (&methods_nullf);
+    return &methods_nullf;
 }
 
 static int nullf_new(BIO *bi)
@@ -57,7 +57,7 @@ static int nullf_new(BIO *bi)
 static int nullf_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     /*-
     a->ptr=NULL;
     a->init=0;
@@ -71,13 +71,13 @@ static int nullf_read(BIO *b, char *out, int outl)
     int ret = 0;
 
     if (out == NULL)
-        return (0);
+        return 0;
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     ret = BIO_read(b->next_bio, out, outl);
     BIO_clear_retry_flags(b);
     BIO_copy_next_retry(b);
-    return (ret);
+    return ret;
 }
 
 static int nullf_write(BIO *b, const char *in, int inl)
@@ -85,13 +85,13 @@ static int nullf_write(BIO *b, const char *in, int inl)
     int ret = 0;
 
     if ((in == NULL) || (inl <= 0))
-        return (0);
+        return 0;
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     ret = BIO_write(b->next_bio, in, inl);
     BIO_clear_retry_flags(b);
     BIO_copy_next_retry(b);
-    return (ret);
+    return ret;
 }
 
 static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -99,7 +99,7 @@ static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr)
     long ret;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     case BIO_C_DO_STATE_MACHINE:
         BIO_clear_retry_flags(b);
@@ -112,7 +112,7 @@ static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr)
     default:
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
     }
-    return (ret);
+    return ret;
 }
 
 static long nullf_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
@@ -120,25 +120,25 @@ static long nullf_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
     long ret = 1;
 
     if (b->next_bio == NULL)
-        return (0);
+        return 0;
     switch (cmd) {
     default:
         ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int nullf_gets(BIO *bp, char *buf, int size)
 {
     if (bp->next_bio == NULL)
-        return (0);
-    return (BIO_gets(bp->next_bio, buf, size));
+        return 0;
+    return BIO_gets(bp->next_bio, buf, size);
 }
 
 static int nullf_puts(BIO *bp, const char *str)
 {
     if (bp->next_bio == NULL)
-        return (0);
-    return (BIO_puts(bp->next_bio, str));
+        return 0;
+    return BIO_puts(bp->next_bio, str);
 }
diff --git a/crypto/bio/bio_lib.c b/crypto/bio/bio_lib.c
index 67acac3d28..3e90f8cfcb 100644
--- a/crypto/bio/bio_lib.c
+++ b/crypto/bio/bio_lib.c
@@ -75,7 +75,7 @@ BIO *BIO_new(const BIO_METHOD *method)
 
     if (bio == NULL) {
         BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE);
-        return (NULL);
+        return NULL;
     }
 
     bio->method = method;
@@ -435,7 +435,7 @@ int BIO_gets(BIO *b, char *buf, int size)
 
     if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) {
         BIOerr(BIO_F_BIO_GETS, BIO_R_UNSUPPORTED_METHOD);
-        return (-2);
+        return -2;
     }
 
     if (size < 0) {
@@ -451,7 +451,7 @@ int BIO_gets(BIO *b, char *buf, int size)
 
     if (!b->init) {
         BIOerr(BIO_F_BIO_GETS, BIO_R_UNINITIALIZED);
-        return (-2);
+        return -2;
     }
 
     ret = b->method->bgets(b, buf, size);
@@ -493,7 +493,7 @@ long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
     int i;
 
     i = iarg;
-    return (BIO_ctrl(b, cmd, larg, (char *)&i));
+    return BIO_ctrl(b, cmd, larg, (char *)&i);
 }
 
 void *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
@@ -501,9 +501,9 @@ void *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
     void *p = NULL;
 
     if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0)
-        return (NULL);
+        return NULL;
     else
-        return (p);
+        return p;
 }
 
 long BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
@@ -540,11 +540,11 @@ long BIO_callback_ctrl(BIO *b, int cmd,
     long ret;
 
     if (b == NULL)
-        return (0);
+        return 0;
 
     if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) {
         BIOerr(BIO_F_BIO_CALLBACK_CTRL, BIO_R_UNSUPPORTED_METHOD);
-        return (-2);
+        return -2;
     }
 
     if (b->callback != NULL || b->callback_ex != NULL) {
@@ -584,7 +584,7 @@ BIO *BIO_push(BIO *b, BIO *bio)
     BIO *lb;
 
     if (b == NULL)
-        return (bio);
+        return bio;
     lb = b;
     while (lb->next_bio != NULL)
         lb = lb->next_bio;
@@ -593,7 +593,7 @@ BIO *BIO_push(BIO *b, BIO *bio)
         bio->prev_bio = lb;
     /* called to do internal processing */
     BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb);
-    return (b);
+    return b;
 }
 
 /* Remove the first and return the rest */
@@ -602,7 +602,7 @@ BIO *BIO_pop(BIO *b)
     BIO *ret;
 
     if (b == NULL)
-        return (NULL);
+        return NULL;
     ret = b->next_bio;
 
     BIO_ctrl(b, BIO_CTRL_POP, 0, b);
@@ -614,7 +614,7 @@ BIO *BIO_pop(BIO *b)
 
     b->next_bio = NULL;
     b->prev_bio = NULL;
-    return (ret);
+    return ret;
 }
 
 BIO *BIO_get_retry_BIO(BIO *bio, int *reason)
@@ -632,12 +632,12 @@ BIO *BIO_get_retry_BIO(BIO *bio, int *reason)
     }
     if (reason != NULL)
         *reason = last->retry_reason;
-    return (last);
+    return last;
 }
 
 int BIO_get_retry_reason(BIO *bio)
 {
-    return (bio->retry_reason);
+    return bio->retry_reason;
 }
 
 void BIO_set_retry_reason(BIO *bio, int reason)
@@ -658,13 +658,13 @@ BIO *BIO_find_type(BIO *bio, int type)
 
             if (!mask) {
                 if (mt & type)
-                    return (bio);
+                    return bio;
             } else if (mt == type)
-                return (bio);
+                return bio;
         }
         bio = bio->next_bio;
     } while (bio != NULL);
-    return (NULL);
+    return NULL;
 }
 
 BIO *BIO_next(BIO *b)
@@ -732,11 +732,11 @@ BIO *BIO_dup_chain(BIO *in)
             eoc = new_bio;
         }
     }
-    return (ret);
+    return ret;
  err:
     BIO_free_all(ret);
 
-    return (NULL);
+    return NULL;
 }
 
 void BIO_copy_next_retry(BIO *b)
@@ -747,12 +747,12 @@ void BIO_copy_next_retry(BIO *b)
 
 int BIO_set_ex_data(BIO *bio, int idx, void *data)
 {
-    return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data));
+    return CRYPTO_set_ex_data(&(bio->ex_data), idx, data);
 }
 
 void *BIO_get_ex_data(BIO *bio, int idx)
 {
-    return (CRYPTO_get_ex_data(&(bio->ex_data), idx));
+    return CRYPTO_get_ex_data(&(bio->ex_data), idx);
 }
 
 uint64_t BIO_number_read(BIO *bio)
diff --git a/crypto/bio/bss_acpt.c b/crypto/bio/bss_acpt.c
index ecb115762e..f795b89145 100644
--- a/crypto/bio/bss_acpt.c
+++ b/crypto/bio/bss_acpt.c
@@ -70,7 +70,7 @@ static const BIO_METHOD methods_acceptp = {
 
 const BIO_METHOD *BIO_s_accept(void)
 {
-    return (&methods_acceptp);
+    return &methods_acceptp;
 }
 
 static int acpt_new(BIO *bi)
@@ -81,7 +81,7 @@ static int acpt_new(BIO *bi)
     bi->num = (int)INVALID_SOCKET;
     bi->flags = 0;
     if ((ba = BIO_ACCEPT_new()) == NULL)
-        return (0);
+        return 0;
     bi->ptr = (char *)ba;
     ba->state = ACPT_S_BEFORE;
     bi->shutdown = 1;
@@ -93,10 +93,10 @@ static BIO_ACCEPT *BIO_ACCEPT_new(void)
     BIO_ACCEPT *ret;
 
     if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
-        return (NULL);
+        return NULL;
     ret->accept_family = BIO_FAMILY_IPANY;
     ret->accept_sock = (int)INVALID_SOCKET;
-    return (ret);
+    return ret;
 }
 
 static void BIO_ACCEPT_free(BIO_ACCEPT *a)
@@ -133,7 +133,7 @@ static int acpt_free(BIO *a)
     BIO_ACCEPT *data;
 
     if (a == NULL)
-        return (0);
+        return 0;
     data = (BIO_ACCEPT *)a->ptr;
 
     if (a->shutdown) {
@@ -359,12 +359,12 @@ static int acpt_read(BIO *b, char *out, int outl)
     while (b->next_bio == NULL) {
         ret = acpt_state(b, data);
         if (ret <= 0)
-            return (ret);
+            return ret;
     }
 
     ret = BIO_read(b->next_bio, out, outl);
     BIO_copy_next_retry(b);
-    return (ret);
+    return ret;
 }
 
 static int acpt_write(BIO *b, const char *in, int inl)
@@ -378,12 +378,12 @@ static int acpt_write(BIO *b, const char *in, int inl)
     while (b->next_bio == NULL) {
         ret = acpt_state(b, data);
         if (ret <= 0)
-            return (ret);
+            return ret;
     }
 
     ret = BIO_write(b->next_bio, in, inl);
     BIO_copy_next_retry(b);
-    return (ret);
+    return ret;
 }
 
 static long acpt_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -527,7 +527,7 @@ static long acpt_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int acpt_puts(BIO *bp, const char *str)
@@ -536,7 +536,7 @@ static int acpt_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = acpt_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 BIO *BIO_new_accept(const char *str)
@@ -545,11 +545,11 @@ BIO *BIO_new_accept(const char *str)
 
     ret = BIO_new(BIO_s_accept());
     if (ret == NULL)
-        return (NULL);
+        return NULL;
     if (BIO_set_accept_name(ret, str))
-        return (ret);
+        return ret;
     BIO_free(ret);
-    return (NULL);
+    return NULL;
 }
 
 #endif
diff --git a/crypto/bio/bss_conn.c b/crypto/bio/bss_conn.c
index 7c6c9a45df..0ead113cad 100644
--- a/crypto/bio/bss_conn.c
+++ b/crypto/bio/bss_conn.c
@@ -216,7 +216,7 @@ static int conn_state(BIO *b, BIO_CONNECT *c)
     if (cb != NULL)
         ret = cb((BIO *)b, c->state, ret);
  end:
-    return (ret);
+    return ret;
 }
 
 BIO_CONNECT *BIO_CONNECT_new(void)
@@ -224,10 +224,10 @@ BIO_CONNECT *BIO_CONNECT_new(void)
     BIO_CONNECT *ret;
 
     if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
-        return (NULL);
+        return NULL;
     ret->state = BIO_CONN_S_BEFORE;
     ret->connect_family = BIO_FAMILY_IPANY;
-    return (ret);
+    return ret;
 }
 
 void BIO_CONNECT_free(BIO_CONNECT *a)
@@ -243,7 +243,7 @@ void BIO_CONNECT_free(BIO_CONNECT *a)
 
 const BIO_METHOD *BIO_s_connect(void)
 {
-    return (&methods_connectp);
+    return &methods_connectp;
 }
 
 static int conn_new(BIO *bi)
@@ -252,7 +252,7 @@ static int conn_new(BIO *bi)
     bi->num = (int)INVALID_SOCKET;
     bi->flags = 0;
     if ((bi->ptr = (char *)BIO_CONNECT_new()) == NULL)
-        return (0);
+        return 0;
     else
         return 1;
 }
@@ -276,7 +276,7 @@ static int conn_free(BIO *a)
     BIO_CONNECT *data;
 
     if (a == NULL)
-        return (0);
+        return 0;
     data = (BIO_CONNECT *)a->ptr;
 
     if (a->shutdown) {
@@ -298,7 +298,7 @@ static int conn_read(BIO *b, char *out, int outl)
     if (data->state != BIO_CONN_S_OK) {
         ret = conn_state(b, data);
         if (ret <= 0)
-            return (ret);
+            return ret;
     }
 
     if (out != NULL) {
@@ -310,7 +310,7 @@ static int conn_read(BIO *b, char *out, int outl)
                 BIO_set_retry_read(b);
         }
     }
-    return (ret);
+    return ret;
 }
 
 static int conn_write(BIO *b, const char *in, int inl)
@@ -322,7 +322,7 @@ static int conn_write(BIO *b, const char *in, int inl)
     if (data->state != BIO_CONN_S_OK) {
         ret = conn_state(b, data);
         if (ret <= 0)
-            return (ret);
+            return ret;
     }
 
     clear_socket_error();
@@ -332,7 +332,7 @@ static int conn_write(BIO *b, const char *in, int inl)
         if (BIO_sock_should_retry(ret))
             BIO_set_retry_write(b);
     }
-    return (ret);
+    return ret;
 }
 
 static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -492,7 +492,7 @@ static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static long conn_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
@@ -513,7 +513,7 @@ static long conn_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int conn_puts(BIO *bp, const char *str)
@@ -522,7 +522,7 @@ static int conn_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = conn_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 BIO *BIO_new_connect(const char *str)
@@ -531,11 +531,11 @@ BIO *BIO_new_connect(const char *str)
 
     ret = BIO_new(BIO_s_connect());
     if (ret == NULL)
-        return (NULL);
+        return NULL;
     if (BIO_set_conn_hostname(ret, str))
-        return (ret);
+        return ret;
     BIO_free(ret);
-    return (NULL);
+    return NULL;
 }
 
 #endif
diff --git a/crypto/bio/bss_dgram.c b/crypto/bio/bss_dgram.c
index 28fc7a50d5..df2203e013 100644
--- a/crypto/bio/bss_dgram.c
+++ b/crypto/bio/bss_dgram.c
@@ -136,7 +136,7 @@ typedef struct bio_dgram_sctp_data_st {
 
 const BIO_METHOD *BIO_s_datagram(void)
 {
-    return (&methods_dgramp);
+    return &methods_dgramp;
 }
 
 BIO *BIO_new_dgram(int fd, int close_flag)
@@ -145,9 +145,9 @@ BIO *BIO_new_dgram(int fd, int close_flag)
 
     ret = BIO_new(BIO_s_datagram());
     if (ret == NULL)
-        return (NULL);
+        return NULL;
     BIO_set_fd(ret, fd, close_flag);
-    return (ret);
+    return ret;
 }
 
 static int dgram_new(BIO *bi)
@@ -165,7 +165,7 @@ static int dgram_free(BIO *a)
     bio_dgram_data *data;
 
     if (a == NULL)
-        return (0);
+        return 0;
     if (!dgram_clear(a))
         return 0;
 
@@ -178,7 +178,7 @@ static int dgram_free(BIO *a)
 static int dgram_clear(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     if (a->shutdown) {
         if (a->init) {
             BIO_closesocket(a->num);
@@ -325,7 +325,7 @@ static int dgram_read(BIO *b, char *out, int outl)
 
         dgram_reset_rcv_timeout(b);
     }
-    return (ret);
+    return ret;
 }
 
 static int dgram_write(BIO *b, const char *in, int inl)
@@ -355,7 +355,7 @@ static int dgram_write(BIO *b, const char *in, int inl)
             data->_errno = get_last_socket_error();
         }
     }
-    return (ret);
+    return ret;
 }
 
 static long dgram_get_mtu_overhead(bio_dgram_data *data)
@@ -799,7 +799,7 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int dgram_puts(BIO *bp, const char *str)
@@ -808,13 +808,13 @@ static int dgram_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = dgram_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 # ifndef OPENSSL_NO_SCTP
 const BIO_METHOD *BIO_s_datagram_sctp(void)
 {
-    return (&methods_dgramp_sctp);
+    return &methods_dgramp_sctp;
 }
 
 BIO *BIO_new_dgram_sctp(int fd, int close_flag)
@@ -836,7 +836,7 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
 
     bio = BIO_new(BIO_s_datagram_sctp());
     if (bio == NULL)
-        return (NULL);
+        return NULL;
     BIO_set_fd(bio, fd, close_flag);
 
     /* Activate SCTP-AUTH for DATA and FORWARD-TSN chunks */
@@ -848,7 +848,7 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
         BIO_vfree(bio);
         BIOerr(BIO_F_BIO_NEW_DGRAM_SCTP, ERR_R_SYS_LIB);
         ERR_add_error_data(1, "Ensure SCTP AUTH chunks are enabled in kernel");
-        return (NULL);
+        return NULL;
     }
     auth.sauth_chunk = OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE;
     ret =
@@ -858,7 +858,7 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
         BIO_vfree(bio);
         BIOerr(BIO_F_BIO_NEW_DGRAM_SCTP, ERR_R_SYS_LIB);
         ERR_add_error_data(1, "Ensure SCTP AUTH chunks are enabled in kernel");
-        return (NULL);
+        return NULL;
     }
 
     /*
@@ -871,14 +871,14 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
     authchunks = OPENSSL_zalloc(sockopt_len);
     if (authchunks == NULL) {
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
     ret = getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks,
                    &sockopt_len);
     if (ret < 0) {
         OPENSSL_free(authchunks);
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
 
     for (p = (unsigned char *)authchunks->gauth_chunks;
@@ -912,14 +912,14 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
                    sizeof(struct sctp_event));
     if (ret < 0) {
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
 #   else
     sockopt_len = (socklen_t) sizeof(struct sctp_event_subscribe);
     ret = getsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, &sockopt_len);
     if (ret < 0) {
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
 
     event.sctp_authentication_event = 1;
@@ -929,7 +929,7 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
                    sizeof(struct sctp_event_subscribe));
     if (ret < 0) {
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
 #   endif
 #  endif
@@ -943,10 +943,10 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
                    sizeof(optval));
     if (ret < 0) {
         BIO_vfree(bio);
-        return (NULL);
+        return NULL;
     }
 
-    return (bio);
+    return bio;
 }
 
 int BIO_dgram_is_sctp(BIO *bio)
@@ -977,7 +977,7 @@ static int dgram_sctp_free(BIO *a)
     bio_dgram_sctp_data *data;
 
     if (a == NULL)
-        return (0);
+        return 0;
     if (!dgram_clear(a))
         return 0;
 
@@ -1222,7 +1222,7 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
             data->peer_auth_tested = 1;
         }
     }
-    return (ret);
+    return ret;
 }
 
 /*
@@ -1338,7 +1338,7 @@ static int dgram_sctp_write(BIO *b, const char *in, int inl)
             data->_errno = get_last_socket_error();
         }
     }
-    return (ret);
+    return ret;
 }
 
 static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -1573,7 +1573,7 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = dgram_ctrl(b, cmd, num, ptr);
         break;
     }
-    return (ret);
+    return ret;
 }
 
 int BIO_dgram_sctp_notification_cb(BIO *b,
@@ -1830,7 +1830,7 @@ static int dgram_sctp_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = dgram_sctp_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 # endif
 
@@ -1849,9 +1849,9 @@ static int BIO_dgram_should_retry(int i)
          */
 # endif
 
-        return (BIO_dgram_non_fatal_error(err));
+        return BIO_dgram_non_fatal_error(err);
     }
-    return (0);
+    return 0;
 }
 
 int BIO_dgram_non_fatal_error(int err)
@@ -1899,7 +1899,7 @@ int BIO_dgram_non_fatal_error(int err)
     default:
         break;
     }
-    return (0);
+    return 0;
 }
 
 static void get_current_time(struct timeval *t)
diff --git a/crypto/bio/bss_fd.c b/crypto/bio/bss_fd.c
index 9fcaaa60d9..9c1826c06c 100644
--- a/crypto/bio/bss_fd.c
+++ b/crypto/bio/bss_fd.c
@@ -75,7 +75,7 @@ static const BIO_METHOD methods_fdp = {
 
 const BIO_METHOD *BIO_s_fd(void)
 {
-    return (&methods_fdp);
+    return &methods_fdp;
 }
 
 BIO *BIO_new_fd(int fd, int close_flag)
@@ -83,9 +83,9 @@ BIO *BIO_new_fd(int fd, int close_flag)
     BIO *ret;
     ret = BIO_new(BIO_s_fd());
     if (ret == NULL)
-        return (NULL);
+        return NULL;
     BIO_set_fd(ret, fd, close_flag);
-    return (ret);
+    return ret;
 }
 
 static int fd_new(BIO *bi)
@@ -100,7 +100,7 @@ static int fd_new(BIO *bi)
 static int fd_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     if (a->shutdown) {
         if (a->init) {
             UP_close(a->num);
@@ -124,7 +124,7 @@ static int fd_read(BIO *b, char *out, int outl)
                 BIO_set_retry_read(b);
         }
     }
-    return (ret);
+    return ret;
 }
 
 static int fd_write(BIO *b, const char *in, int inl)
@@ -137,7 +137,7 @@ static int fd_write(BIO *b, const char *in, int inl)
         if (BIO_fd_should_retry(ret))
             BIO_set_retry_write(b);
     }
-    return (ret);
+    return ret;
 }
 
 static long fd_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -189,7 +189,7 @@ static long fd_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int fd_puts(BIO *bp, const char *str)
@@ -198,7 +198,7 @@ static int fd_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = fd_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 static int fd_gets(BIO *bp, char *buf, int size)
@@ -216,7 +216,7 @@ static int fd_gets(BIO *bp, char *buf, int size)
 
     if (buf[0] != '\0')
         ret = strlen(buf);
-    return (ret);
+    return ret;
 }
 
 int BIO_fd_should_retry(int i)
@@ -226,9 +226,9 @@ int BIO_fd_should_retry(int i)
     if ((i == 0) || (i == -1)) {
         err = get_last_sys_error();
 
-        return (BIO_fd_non_fatal_error(err));
+        return BIO_fd_non_fatal_error(err);
     }
-    return (0);
+    return 0;
 }
 
 int BIO_fd_non_fatal_error(int err)
@@ -274,6 +274,6 @@ int BIO_fd_non_fatal_error(int err)
     default:
         break;
     }
-    return (0);
+    return 0;
 }
 #endif
diff --git a/crypto/bio/bss_log.c b/crypto/bio/bss_log.c
index 181ab9c58f..b5b9363c38 100644
--- a/crypto/bio/bss_log.c
+++ b/crypto/bio/bss_log.c
@@ -101,7 +101,7 @@ static const BIO_METHOD methods_slg = {
 
 const BIO_METHOD *BIO_s_log(void)
 {
-    return (&methods_slg);
+    return &methods_slg;
 }
 
 static int slg_new(BIO *bi)
@@ -116,7 +116,7 @@ static int slg_new(BIO *bi)
 static int slg_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     xcloselog(a);
     return 1;
 }
@@ -196,7 +196,7 @@ static int slg_write(BIO *b, const char *in, int inl)
     };
 
     if ((buf = OPENSSL_malloc(inl + 1)) == NULL) {
-        return (0);
+        return 0;
     }
     strncpy(buf, in, inl);
     buf[inl] = '\0';
@@ -210,7 +210,7 @@ static int slg_write(BIO *b, const char *in, int inl)
     xsyslog(b, priority, pp);
 
     OPENSSL_free(buf);
-    return (ret);
+    return ret;
 }
 
 static long slg_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -223,7 +223,7 @@ static long slg_ctrl(BIO *b, int cmd, long num, void *ptr)
     default:
         break;
     }
-    return (0);
+    return 0;
 }
 
 static int slg_puts(BIO *bp, const char *str)
@@ -232,7 +232,7 @@ static int slg_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = slg_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 # if defined(OPENSSL_SYS_WIN32)
diff --git a/crypto/bio/bss_mem.c b/crypto/bio/bss_mem.c
index 49ac1da024..621472594a 100644
--- a/crypto/bio/bss_mem.c
+++ b/crypto/bio/bss_mem.c
@@ -70,7 +70,7 @@ typedef struct bio_buf_mem_st {
 
 const BIO_METHOD *BIO_s_mem(void)
 {
-    return (&mem_method);
+    return &mem_method;
 }
 
 const BIO_METHOD *BIO_s_secmem(void)
@@ -130,23 +130,23 @@ static int mem_init(BIO *bi, unsigned long flags)
 
 static int mem_new(BIO *bi)
 {
-    return (mem_init(bi, 0L));
+    return mem_init(bi, 0L);
 }
 
 static int secmem_new(BIO *bi)
 {
-    return (mem_init(bi, BUF_MEM_FLAG_SECURE));
+    return mem_init(bi, BUF_MEM_FLAG_SECURE);
 }
 
 static int mem_free(BIO *a)
 {
-    return (mem_buf_free(a, 1));
+    return mem_buf_free(a, 1);
 }
 
 static int mem_buf_free(BIO *a, int free_all)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     if (a->shutdown) {
         if ((a->init) && (a->ptr != NULL)) {
             BUF_MEM *b;
@@ -182,7 +182,7 @@ static int mem_buf_sync(BIO *b)
             bbm->readp->data = bbm->buf->data;
         }
     }
-    return (0);
+    return 0;
 }
 
 static int mem_read(BIO *b, char *out, int outl)
@@ -202,7 +202,7 @@ static int mem_read(BIO *b, char *out, int outl)
         if (ret != 0)
             BIO_set_retry_read(b);
     }
-    return (ret);
+    return ret;
 }
 
 static int mem_write(BIO *b, const char *in, int inl)
@@ -228,7 +228,7 @@ static int mem_write(BIO *b, const char *in, int inl)
     *bbm->readp = *bbm->buf;
     ret = inl;
  end:
-    return (ret);
+    return ret;
 }
 
 static long mem_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -305,7 +305,7 @@ static long mem_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int mem_gets(BIO *bp, char *buf, int size)
@@ -341,7 +341,7 @@ static int mem_gets(BIO *bp, char *buf, int size)
     if (i > 0)
         buf[i] = '\0';
     ret = i;
-    return (ret);
+    return ret;
 }
 
 static int mem_puts(BIO *bp, const char *str)
@@ -351,5 +351,5 @@ static int mem_puts(BIO *bp, const char *str)
     n = strlen(str);
     ret = mem_write(bp, str, n);
     /* memory semantics is that it will always work */
-    return (ret);
+    return ret;
 }
diff --git a/crypto/bio/bss_null.c b/crypto/bio/bss_null.c
index 14964d3985..13982c0851 100644
--- a/crypto/bio/bss_null.c
+++ b/crypto/bio/bss_null.c
@@ -38,7 +38,7 @@ static const BIO_METHOD null_method = {
 
 const BIO_METHOD *BIO_s_null(void)
 {
-    return (&null_method);
+    return &null_method;
 }
 
 static int null_new(BIO *bi)
@@ -52,18 +52,18 @@ static int null_new(BIO *bi)
 static int null_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     return 1;
 }
 
 static int null_read(BIO *b, char *out, int outl)
 {
-    return (0);
+    return 0;
 }
 
 static int null_write(BIO *b, const char *in, int inl)
 {
-    return (inl);
+    return inl;
 }
 
 static long null_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -88,17 +88,17 @@ static long null_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int null_gets(BIO *bp, char *buf, int size)
 {
-    return (0);
+    return 0;
 }
 
 static int null_puts(BIO *bp, const char *str)
 {
     if (str == NULL)
-        return (0);
-    return (strlen(str));
+        return 0;
+    return strlen(str);
 }
diff --git a/crypto/bio/bss_sock.c b/crypto/bio/bss_sock.c
index 6ff0f663ed..09f127b92d 100644
--- a/crypto/bio/bss_sock.c
+++ b/crypto/bio/bss_sock.c
@@ -53,7 +53,7 @@ static const BIO_METHOD methods_sockp = {
 
 const BIO_METHOD *BIO_s_socket(void)
 {
-    return (&methods_sockp);
+    return &methods_sockp;
 }
 
 BIO *BIO_new_socket(int fd, int close_flag)
@@ -62,9 +62,9 @@ BIO *BIO_new_socket(int fd, int close_flag)
 
     ret = BIO_new(BIO_s_socket());
     if (ret == NULL)
-        return (NULL);
+        return NULL;
     BIO_set_fd(ret, fd, close_flag);
-    return (ret);
+    return ret;
 }
 
 static int sock_new(BIO *bi)
@@ -79,7 +79,7 @@ static int sock_new(BIO *bi)
 static int sock_free(BIO *a)
 {
     if (a == NULL)
-        return (0);
+        return 0;
     if (a->shutdown) {
         if (a->init) {
             BIO_closesocket(a->num);
@@ -103,7 +103,7 @@ static int sock_read(BIO *b, char *out, int outl)
                 BIO_set_retry_read(b);
         }
     }
-    return (ret);
+    return ret;
 }
 
 static int sock_write(BIO *b, const char *in, int inl)
@@ -117,7 +117,7 @@ static int sock_write(BIO *b, const char *in, int inl)
         if (BIO_sock_should_retry(ret))
             BIO_set_retry_write(b);
     }
-    return (ret);
+    return ret;
 }
 
 static long sock_ctrl(BIO *b, int cmd, long num, void *ptr)
@@ -155,7 +155,7 @@ static long sock_ctrl(BIO *b, int cmd, long num, void *ptr)
         ret = 0;
         break;
     }
-    return (ret);
+    return ret;
 }
 
 static int sock_puts(BIO *bp, const char *str)
@@ -164,7 +164,7 @@ static int sock_puts(BIO *bp, const char *str)
 
     n = strlen(str);
     ret = sock_write(bp, str, n);
-    return (ret);
+    return ret;
 }
 
 int BIO_sock_should_retry(int i)
@@ -174,9 +174,9 @@ int BIO_sock_should_retry(int i)
     if ((i == 0) || (i == -1)) {
         err = get_last_socket_error();
 
-        return (BIO_sock_non_fatal_error(err));
+        return BIO_sock_non_fatal_error(err);
     }
-    return (0);
+    return 0;
 }
 
 int BIO_sock_non_fatal_error(int err)
@@ -227,7 +227,7 @@ int BIO_sock_non_fatal_error(int err)
     default:
         break;
     }
-    return (0);
+    return 0;
 }
 
 #endif                          /* #ifndef OPENSSL_NO_SOCK */