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author | Julia Lawall <julia@diku.dk> | 2009-07-12 07:43:52 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 13:46:28 (GMT) |
commit | 058e698b6372aa32b3b0dbbb81e5531a2ae3e56c (patch) | |
tree | 1b29534beb35d5aab02c448a1aa0dd406229ca3d /drivers/usb/misc/idmouse.c | |
parent | d12b85e7de1abce4db940ebb169f064583b5796e (diff) | |
download | linux-fsl-qoriq-058e698b6372aa32b3b0dbbb81e5531a2ae3e56c.tar.xz |
USB: gadget: Drop NULL test on list_entry result
list_entry, which is an alias for container_of, cannot return NULL, as
there is no way to add a NULL value to a doubly linked list.
A simplified version of the semantic match that findds this problem is as
follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r@
expression x,E;
statement S1,S2;
position p,p1;
@@
*x = list_entry@p(...)
... when != x = E
*if@p1 (x == NULL) S1 else S2
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/misc/idmouse.c')
0 files changed, 0 insertions, 0 deletions