From: Jesper Juhl <jesper.juhl@gmail.com>
Date: Fri, 23 Jun 2006 09:05:27 +0000 (-0700)
Subject: [PATCH] i4l: memory leak fix for sc_ioctl().
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=94a6735cd67375029c2092e6d46f14b2721e6793;p=linux-beck.git

[PATCH] i4l: memory leak fix for sc_ioctl().

Fix leak of `rcvmsg' in sc_ioctl().

There are two returns in the switch in sc_ioctl (the SCIOCSTART case) that
may leak `rcvmsg'.  This patch fixes that by adding a kfree() call at the
beginning of that case.

Bug found by the coverity checker as #1098

Eric Sesterhenn send me a patch to fix the leak(s) by adding 2 kfree()
calls before the returns, I changed that into just a single call at the
beginning.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/isdn/sc/ioctl.c b/drivers/isdn/sc/ioctl.c
index f4f71226a078..57c4ab96d136 100644
--- a/drivers/isdn/sc/ioctl.c
+++ b/drivers/isdn/sc/ioctl.c
@@ -97,6 +97,7 @@ int sc_ioctl(int card, scs_ioctl *data)
 
 	case SCIOCSTART:
 	{
+		kfree(rcvmsg);
 		pr_debug("%s: SCIOSTART: ioctl received\n",
 				sc_adapter[card]->devicename);
 		if(sc_adapter[card]->EngineUp) {