ACPI: video - fix potential crash when unloading
authorDmitry Torokhov <dmitry.torokhov@gmail.com>
Sat, 8 Aug 2009 07:26:25 +0000 (00:26 -0700)
committerLen Brown <len.brown@intel.com>
Sun, 30 Aug 2009 02:58:19 +0000 (22:58 -0400)
commit4b4fe3b62e8d88068083218d3e42c45223b51d29
tree6d08c8117fc004da8bae7312a3715f1c11ef3ced
parent4e231fa4cbd3ff53fcb7d76eccd6fd86a152a95f
ACPI: video - fix potential crash when unloading

thermal_cooling_device_register() returns error encoded in a pointer
when it fails in which case we need to explictly set device->cdev
to NULL so we don't try to unregister it when unloading.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/video.c