From: Julia Lawall <julia@diku.dk>
Date: Fri, 23 Dec 2011 16:39:32 +0000 (-0300)
Subject: [media] drivers/media/video/davinci/vpbe.c: introduce missing kfree
X-Git-Tag: v3.3-rc1~48^2~88
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75e5ac7ea57ea56628f73a8a0aaf58f758aae43a;p=pandora-kernel.git

[media] drivers/media/video/davinci/vpbe.c: introduce missing kfree

vpbe_dev needs to be freed before leaving the function in an error case.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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