From 47d556664695f6bbde0d0ab0c1261ed0070c81fd Mon Sep 17 00:00:00 2001
From: Nils Larsch <nils@openssl.org>
Date: Mon, 13 Mar 2006 23:14:57 +0000
Subject: fix error found by coverity: check if ctx is != NULL before calling
 BN_CTX_end()

---
 crypto/dh/dh_key.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'crypto/dh')

diff --git a/crypto/dh/dh_key.c b/crypto/dh/dh_key.c
index cc17c8851b..79984e13bc 100644
--- a/crypto/dh/dh_key.c
+++ b/crypto/dh/dh_key.c
@@ -217,8 +217,11 @@ static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
 
 	ret=BN_bn2bin(tmp,key);
 err:
-	BN_CTX_end(ctx);
-	BN_CTX_free(ctx);
+	if (ctx != NULL)
+		{
+		BN_CTX_end(ctx);
+		BN_CTX_free(ctx);
+		}
 	return(ret);
 	}
 
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