]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
drm: Move a dereference below a NULL test
authorJulia Lawall <julia@diku.dk>
Sat, 11 Jul 2009 07:50:09 +0000 (09:50 +0200)
committerDave Airlie <airlied@linux.ie>
Wed, 15 Jul 2009 06:56:48 +0000 (16:56 +1000)
commitecca0683230b83e8f830ff157911fad20bc43015
tree95d69ae4726d58b80a44fb7c9ef3702b5e5e34a6
parentba0ab82358a12e7a7f2872d6b65c437157c6888f
drm: Move a dereference below a NULL test

If the NULL test is necessary, then the dereference should be moved below
the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dave Airlie <airlied@linux.ie>
drivers/gpu/drm/drm_stub.c