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| author | Julia Lawall <julia@diku.dk> | 2009-09-23 01:47:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 16:39:56 +0200 |
| commit | ff8147fe71246b81a48de5f37041b026b57d60ca (patch) | |
| tree | 9ae6fb50b937d1b38a7d53a925d5fb9759db1cd4 /drivers/video/fbmem.c | |
| parent | drivers/video/console/newport_con.c: fix read outside array bounds (diff) | |
| download | linux-ff8147fe71246b81a48de5f37041b026b57d60ca.tar.xz linux-ff8147fe71246b81a48de5f37041b026b57d60ca.zip | |
drivers/video: add kmalloc NULL tests
Check that the result of kmalloc is not NULL before passing it to other
functions.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression *x;
identifier f;
constant char *C;
@@
x = \(kmalloc\|kcalloc\|kzalloc\)(...);
... when != x == NULL
when != x != NULL
when != (x || ...)
(
kfree(x)
|
f(...,C,...,x,...)
|
*f(...,x,...)
|
*x->f
)
// </smpl>
[akpm@linux-foundation.org: convert to kstrdup() as well]
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions