[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: NJesper Juhl <jesper.juhl@gmail.com>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

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) {