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| author | Julia Lawall <julia@diku.dk> | 2011-04-01 16:23:47 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-04-06 18:44:57 +0200 |
| commit | a8c908d353e52336b864025dbd8253134c3f5411 (patch) | |
| tree | a94cf9d1774028e08803f14fdd07819d139d5899 /drivers/video | |
| parent | video: s3c-fb: fix checkpatch errors and warning (diff) | |
| download | linux-a8c908d353e52336b864025dbd8253134c3f5411.tar.xz linux-a8c908d353e52336b864025dbd8253134c3f5411.zip | |
drivers/video/bfin-lq035q1-fb.c: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...x...+> }
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,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>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/bfin-lq035q1-fb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c index c8e1f04941bd..23b6c4b62c78 100644 --- a/drivers/video/bfin-lq035q1-fb.c +++ b/drivers/video/bfin-lq035q1-fb.c @@ -154,8 +154,10 @@ static int __devinit lq035q1_spidev_probe(struct spi_device *spi) ret = lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON); ret |= lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode); - if (ret) + if (ret) { + kfree(ctl); return ret; + } spi_set_drvdata(spi, ctl); |