From: Dr. Stephen Henson <steve@openssl.org>
Date: Tue, 1 Dec 2009 18:41:50 +0000 (+0000)
Subject: check DSA_sign() return value properly
X-Git-Tag: OpenSSL_1_0_0-beta5~69
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6125e07d794624b01a5261cb567a9bbf60e53637;p=openssl

check DSA_sign() return value properly
---

diff --git a/crypto/dsa/dsa_pmeth.c b/crypto/dsa/dsa_pmeth.c
index 84b77e3bfc..4ce91e20c6 100644
--- a/crypto/dsa/dsa_pmeth.c
+++ b/crypto/dsa/dsa_pmeth.c
@@ -132,7 +132,7 @@ static int pkey_dsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
 
 	ret = DSA_sign(type, tbs, tbslen, sig, &sltmp, dsa);
 
-	if (ret < 0)
+	if (ret <= 0)
 		return ret;
 	*siglen = sltmp;
 	return 1;