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linux-2.6/drivers/staging/dream/camera
Julia Lawall 2bb6a12a88 Staging: dream: introduce missing kfree
Error handling code following a kmalloc or kzalloc 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>
2009-09-15 12:02:34 -07:00
..
Kconfig
Makefile
msm_camera.c
msm_io7x.c
msm_io8x.c
msm_v4l2.c Staging: dream: introduce missing kfree 2009-09-15 12:02:34 -07:00
msm_vfe7x.c
msm_vfe7x.h
msm_vfe8x.c
msm_vfe8x.h
msm_vfe8x_proc.c Staging: dream: introduce missing kfree 2009-09-15 12:02:34 -07:00
msm_vfe8x_proc.h
mt9d112.c
mt9d112.h
mt9d112_reg.c
mt9p012.h
mt9p012_fox.c
mt9p012_reg.c
mt9t013.c
mt9t013.h
mt9t013_reg.c
s5k3e2fx.c
s5k3e2fx.h