commit 1f70ef96b176bdb3b75230ec68850d83736b387b
author Alexey Khoroshilov <khoroshilov@ispras.ru> Fri Jul 18 03:11:45 2014 +0400
committer Trond Myklebust <trond.myklebust@primarydata.com> Sun Aug 03 17:14:10 2014 -0400
tree dd1007c5227311063ef2cfbd0f7ae8d38b345d04
parent 411a99adffb4f993eee29759f744de01487044ac

NFS: add checks for returned value of try_module_get()

There is a couple of places in client code where returned value
of try_module_get() is ignored. As a result there is a small chance
to premature unload module because of unbalanced refcounting.

The patch adds error handling in that places.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>