locks: use list_first_entry_or_null()
authorGeliang Tang <geliangtang@163.com>
Wed, 18 Nov 2015 13:40:33 +0000 (21:40 +0800)
committerJeff Layton <jeff.layton@primarydata.com>
Wed, 18 Nov 2015 14:21:49 +0000 (09:21 -0500)
commit8ace5dfb983e89dbcfcb42ff25df6e4240c555bb
treeace737a4a6603a5acf69027b997e2fd86ce84de1
parent95ace75414f312f9a7b93d873f386987b92a5301
locks: use list_first_entry_or_null()

Simplify the code with list_first_entry_or_null().

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
fs/locks.c