From 196e476330c7e35c582f162590594b4667a74b0c Mon Sep 17 00:00:00 2001
From: Viktor Tarasov <viktor.tarasov@gmail.com>
Date: Mon, 7 Mar 2016 18:30:56 +0100
Subject: [PATCH] coverity: check returned value

---
 src/libopensc/pkcs15-sec.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/libopensc/pkcs15-sec.c b/src/libopensc/pkcs15-sec.c
index af2520d4..34629e98 100644
--- a/src/libopensc/pkcs15-sec.c
+++ b/src/libopensc/pkcs15-sec.c
@@ -344,8 +344,10 @@ int sc_pkcs15_compute_signature(struct sc_pkcs15_card *p15card,
 	/* revert data to sign when signing with the GOST key.
 	 * TODO: can it be confirmed by the GOST standard?
 	 * TODO: tested with RuTokenECP, has to be validated for RuToken. */
-	if (obj->type == SC_PKCS15_TYPE_PRKEY_GOSTR3410)
-		sc_mem_reverse(buf, inlen);
+	if (obj->type == SC_PKCS15_TYPE_PRKEY_GOSTR3410)   {
+		r = sc_mem_reverse(buf, inlen);
+		LOG_TEST_RET(ctx, r, "Reverse memory error");
+	}
 
 	tmp = buf;