drm: fix a memleak on mutex failure path
authorOleg Drokin <green@linuxhacker.ru>
Mon, 27 Apr 2015 15:36:46 +0000 (11:36 -0400)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 5 May 2015 07:26:43 +0000 (09:26 +0200)
commited1817036bd6d83829039543c9fe4aa94acc7c39
tree20efdd30019a7dfb9684500f30e62c93a81ba08a
parent3671c580e55955e61072a6e6d0d9567abdd80b5c
drm: fix a memleak on mutex failure path

Need to free just allocated ctx allocation if we cannot
get our config mutex.

This one has been flagged by kbuild bot all the way back in August,
but somehow nobody picked it up:
https://lists.01.org/pipermail/kbuild/2014-August/001691.html

In addition there is another failure path that leaks the same
ctx reference that is fixed.

Found with smatch.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/drm_modeset_lock.c