staging: lustre: obdclass: obd_config: remove unneeded null test before free
authorJulia Lawall <Julia.Lawall@lip6.fr>
Fri, 1 May 2015 19:37:53 +0000 (21:37 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 8 May 2015 07:23:55 +0000 (09:23 +0200)
commit32a3fab2ed1ed7240514eb50506031e68dcd4a38
tree15bfb379c911782a87ca140cca2a8aeadda9bed7
parent2522d76ae4061b679ebabea02e2ccf762846a4c0
staging: lustre: obdclass: obd_config: remove unneeded null test before free

Kfree can cope with a null argument, so drop null tests.

The semantic patch that identifies this issue is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression ptr; @@

- if (ptr != NULL)
  kfree(ptr);
// </smpl>

The first part of the patch introduces new labels to avoid unnecessary
calls to kfree.  In addition, lprof->lp_md is always null in the cleanup
code at the end of the function, so that kfree is just dropped.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/lustre/lustre/obdclass/obd_config.c