diff options
| author | Julia Lawall <julia@diku.dk> | 2011-12-23 13:39:32 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-06 11:13:05 -0200 |
| commit | 75e5ac7ea57ea56628f73a8a0aaf58f758aae43a (patch) | |
| tree | 67ced9f439c027b916a21b28f68c523a38532002 | |
| parent | aecf33db58cbcb40299a7630b3b6c89aa126fcb6 (diff) | |
[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>
| -rw-r--r-- | drivers/media/video/davinci/vpbe.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/video/davinci/vpbe.c b/drivers/media/video/davinci/vpbe.c index c12a714c080..1cc254d52a4 100644 --- a/drivers/media/video/davinci/vpbe.c +++ b/drivers/media/video/davinci/vpbe.c @@ -853,8 +853,10 @@ static __devinit int vpbe_probe(struct platform_device *pdev) if (cfg->outputs->num_modes > 0) vpbe_dev->current_timings = vpbe_dev->cfg->outputs[0].modes[0]; - else + else { + kfree(vpbe_dev); return -ENODEV; + } /* set the driver data in platform device */ platform_set_drvdata(pdev, vpbe_dev); |