[PATCH 1/2] sunrpc: add missing spin_unlock

[Akinobu Mita <akinobu.mita@gmail.com>]

auth_domain_put() forgot to unlock acquired spinlock.

Cc: Olaf Kirch <okir@monad.swb.de>
Cc: Andy Adamson <andros@citi.umich.edu>
Cc: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>

Index: work-fault-inject/net/sunrpc/svcauth.c
===================================================================
--- work-fault-inject.orig/net/sunrpc/svcauth.c
+++ work-fault-inject/net/sunrpc/svcauth.c
@@ -126,6 +126,7 @@ void auth_domain_put(struct auth_domain 
 	if (atomic_dec_and_lock(&dom->ref.refcount, &auth_domain_lock)) {
 		hlist_del(&dom->hash);
 		dom->flavour->domain_release(dom);
+		spin_unlock(&auth_domain_lock);
 	}
 }