NSM: Check result of SM_UNMON upcall

Make sure any error returned by rpc.statd during an SM_UNMON call is
reported rather than ignored completely.  There isn't much to do with
such an error, but we should log it in any case.

Similar to a recent change to nsm_monitor().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index d61cdc61cb50..3bb71e1b1e1f 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -126,6 +126,8 @@ void nsm_unmonitor(const struct nlm_host *host)
                 dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name);
 
                 status = nsm_mon_unmon(nsm, SM_UNMON, &res);
+                if (res.status != 0)
+                        status = -EIO;
                 if (status < 0)
                         printk(KERN_NOTICE "lockd: cannot unmonitor %s\n",
                                         nsm->sm_name);