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-rw-r--r--ssl/ssl_lib.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 348b507622..4cb40bd89b 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -893,7 +893,8 @@ int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
{
- CRYPTO_THREAD_write_lock(ctx->lock);
+ if (!CRYPTO_THREAD_write_lock(ctx->lock))
+ return 0;
ctx->generate_session_id = cb;
CRYPTO_THREAD_unlock(ctx->lock);
return 1;
@@ -901,7 +902,8 @@ int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
{
- CRYPTO_THREAD_write_lock(ssl->lock);
+ if (!CRYPTO_THREAD_write_lock(ssl->lock))
+ return 0;
ssl->generate_session_id = cb;
CRYPTO_THREAD_unlock(ssl->lock);
return 1;
@@ -926,7 +928,8 @@ int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
r.session_id_length = id_len;
memcpy(r.session_id, id, id_len);
- CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
+ if (!CRYPTO_THREAD_read_lock(ssl->session_ctx->lock))
+ return 0;
p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
return (p != NULL);