[PATCH 4.4 45/67] quota: Check for register_shrinker() failure.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Tetsuo Handa [ Upstream commit 88bc0ede8d35edc969350852894dc864a2dc1859 ] register_shrinker() might return -ENOMEM error since Linux 3.12. Call panic() as

[PATCH 4.4 45/67] quota: Check for register_shrinker() failure.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Tetsuo Handa [ Upstream commit 88bc0ede8d35edc969350852894dc864a2dc1859 ] register_shrinker() might return -ENOMEM error since Linux 3.12. Call panic() as with other failure checks in this