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author | Julia Lawall <julia@diku.dk> | 2009-07-12 22:05:33 +0200 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-07-24 15:05:12 -0400 |
commit | ec96cfd8215af1cda016837efb266409164e3a30 (patch) | |
tree | 827874cdcb03ec719ed0756b896cd67f998ae880 /Documentation/fb | |
parent | 323d566eae1ace41bc674863b58fcc474501a2db (diff) |
drivers/net: Drop unnecessary NULL test
The result of container_of should not be NULL. In particular, in this case
the argument to the enclosing function has passed though INIT_WORK, which
dereferences it, implying that its container cannot be NULL.
A simplified version of the semantic patch that makes this change is as
follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
identifier fn,work,x,fld;
type T;
expression E1,E2;
statement S;
@@
static fn(struct work_struct *work) {
... when != work = E1
x = container_of(work,T,fld)
... when != x = E2
- if (x == NULL) S
...
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation/fb')
0 files changed, 0 insertions, 0 deletions