register_shrinker() might return -ENOMEM error since Linux 3.12.
Call panic() as with other failure checks in this function if
register_shrinker() failed.
Signed-off-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp>
Cc: Jan Kara <j...@suse.com>
Cc: Michal Hocko <mho...@suse.com>
---
fs/quota/dquot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 39f1b0b..1429f03 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2985,7 +2985,8 @@ static int __init dquot_init(void)
pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld,"
" %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order));
- register_shrinker(&dqcache_shrinker);
+ if (register_shrinker(&dqcache_shrinker))
+ panic("Cannot register dquot shrinker");
return 0;
}
--
1.8.3.1
