diff options
| author | Julia Lawall <julia@diku.dk> | 2009-08-07 09:00:34 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-08-20 10:27:17 +1000 |
| commit | 6c75933c00049bee59562a18843a4f133ec2bfe4 (patch) | |
| tree | 57618062dd88af2c186610a5f880df48257f8d24 /kernel/softirq.c | |
| parent | 8dcd038a13b8e322c49fe0d3e31a0deaba4fd5fd (diff) | |
powerpc/fsl_rio: Add kmalloc NULL tests
Check that the result of kmalloc/kzalloc is not NULL before dereferencing it.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <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>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'kernel/softirq.c')
0 files changed, 0 insertions, 0 deletions