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From: Stefan Weil <weil@mail.berlios.de>
To: linux390@de.ibm.com
Cc: Stefan Weil <weil@mail.berlios.de>,
	Ursula Braun <ursula.braun@de.ibm.com>,
	Frank Blaschka <blaschka@linux.vnet.ibm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] s390: Fix possibly wrong size in strncmp (smsglucv)
Date: Sat, 29 Jan 2011 22:33:28 +0100	[thread overview]
Message-ID: <1296336808-2809-2-git-send-email-weil@mail.berlios.de> (raw)
In-Reply-To: <1296336808-2809-1-git-send-email-weil@mail.berlios.de>

This error was reported by cppcheck:
drivers/s390/net/smsgiucv.c:63: error: Using sizeof for array given as function argument returns the size of pointer.

Although there is no runtime problem as long as sizeof(u8 *) == 8,
this misleading code should get fixed.

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

diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 65e1cf1..207b7d7 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -60,7 +60,7 @@ static struct iucv_handler smsg_handler = {
 static int smsg_path_pending(struct iucv_path *path, u8 ipvmid[8],
 			     u8 ipuser[16])
 {
-	if (strncmp(ipvmid, "*MSG    ", sizeof(ipvmid)) != 0)
+	if (strncmp(ipvmid, "*MSG    ", 8) != 0)
 		return -EINVAL;
 	/* Path pending from *MSG. */
 	return iucv_path_accept(path, &smsg_handler, "SMSGIUCV        ", NULL);
-- 
1.7.2.3


  reply	other threads:[~2011-01-29 21:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-29 21:33 [PATCH 1/2] s390: Fix wrong size in memcmp (netiucv) Stefan Weil
2011-01-29 21:33 ` Stefan Weil [this message]
2011-01-29 21:38   ` [PATCH 2/2] s390: Fix possibly wrong size in strncmp (smsglucv) Jesper Juhl
2011-01-29 22:08     ` Andreas Schwab
2011-01-29 23:00     ` Stefan Weil
2011-01-30 12:01       ` Geert Uytterhoeven
2011-01-31 10:44   ` Ursula Braun
2011-01-31 10:37 ` [PATCH 1/2] s390: Fix wrong size in memcmp (netiucv) Ursula Braun

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