commit a1fe33af5f8c5f5aebe68d22125d19e48b8e601c
author Chao Yu <chao2.yu@samsung.com> Mon May 18 16:43:02 2015 +0800
committer Richard Weinberger <richard@nod.at> Tue Jun 02 11:41:38 2015 +0200
tree d86bdb38a53af379bf76888f779214deb6d9edb0
parent 2bf50d42f3a418153d2964ca0f25655177f36445

ubifs: fix to check error code of register_shrinker

register_shrinker() in ubifs_init() can fail due to fail to call kzalloc.
This patch fixes to check the return value of register_shrinker, otherwise
our shrinker may be unregistered after ubifs initialized successfully.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>