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author | Julia Lawall <julia@diku.dk> | 2008-11-14 19:08:18 +0100 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2008-11-15 19:07:29 +0100 |
commit | d6f35e3f0da14a5eb02114708d88ae2f59dc8283 (patch) | |
tree | 4f55cce13c5077651ab4452a49ab89355ba2e336 /Documentation/development-process/6.Followthrough | |
parent | 0f101fa6bccdc797ddcee40fd4c55e879155a40f (diff) |
ALSA: sound/pci/pcxhr/pcxhr.c: introduce missing kfree and pci_disable_device
Error handling code following a kzalloc should free the allocated data.
The error handling code is adjusted to call pci_disable_device(pci); as
well, as done later in the function
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,l;
position p1,p2;
expression *ptr != NULL;
@@
(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
when != if (...) { <+...x...+> }
x->f = E
...>
(
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: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/development-process/6.Followthrough')
0 files changed, 0 insertions, 0 deletions