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author | Julia Lawall <julia@diku.dk> | 2009-07-12 09:42:47 +0200 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2009-07-23 01:28:02 +0200 |
commit | 3040c8203d68a9a0564af81729085054fd6b5b03 (patch) | |
tree | 5a1036cf9c9fce40f2b9cfb369745fbabb09c987 /net | |
parent | 711a680e35059bc5c7c28d3c4bd0bebd3b7bb6ee (diff) |
HID: 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: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions