linux-kernel - [PATCH 1/2] s390: Fix wrong size in memcmp (netiucv)

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Date:	Sat, 29 Jan 2011 22:33:27 +0100
From:	Stefan Weil <weil@...l.berlios.de>
To:	linux390@...ibm.com
Cc:	Stefan Weil <weil@...l.berlios.de>,
	Ursula Braun <ursula.braun@...ibm.com>,
	Frank Blaschka <blaschka@...ux.vnet.ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] s390: Fix wrong size in memcmp (netiucv)

This error was reported by cppcheck:
drivers/s390/net/netiucv.c:568: error: Using sizeof for array given as function argument returns the size of pointer.

sizeof(ipuser) did not result in 16 (as many programmers would have
expected) but sizeof(u8 *), so it is 4 or 8, too small here.

Cc: Ursula Braun <ursula.braun@...ibm.com>
Cc: linux390@...ibm.com
Cc: Frank Blaschka <blaschka@...ux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: linux-s390@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Stefan Weil <weil@...l.berlios.de>
---
 drivers/s390/net/netiucv.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 65ebee0..b6a6356 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -565,7 +565,7 @@ static int netiucv_callback_connreq(struct iucv_path *path,
 	struct iucv_event ev;
 	int rc;
 
-	if (memcmp(iucvMagic, ipuser, sizeof(ipuser)))
+	if (memcmp(iucvMagic, ipuser, 16))
 		/* ipuser must match iucvMagic. */
 		return -EINVAL;
 	rc = -EINVAL;
-- 
1.7.2.3

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