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(parent: 14fbd4a) | patch
mbcache: fix to detect failure of register_shrinker
authorChao Yu <yuchao0@huawei.com>
Wed, 31 Aug 2016 15:44:36 +0000 (11:44 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 31 Aug 2016 15:44:36 +0000 (11:44 -0400)
commit8913f343cdb568222c95afe3cad78aee1a4df56b
tree8a66c63713f0a8c284e1029fd2504164c0050d59tree | snapshot (tar.gz zip)
parent14fbd4aa613bd5110556c281799ce36dc6f3ba97commit | diff
mbcache: fix to detect failure of register_shrinker

register_shrinker in mb_cache_create may fail due to no memory. This
patch fixes to do the check of return value of register_shrinker and
handle the error case, otherwise mb_cache_create may return with no
error, but losing the inner shrinker.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Motorola kernel-slsi