nfs41: Handle session errors during delegation return

Add session error handling to nfs4_open_delegation_recall()

Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index acde776..96dfff1 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1168,6 +1168,14 @@
 			case -ENOENT:
 			case -ESTALE:
 				goto out;
+			case -NFS4ERR_BADSESSION:
+			case -NFS4ERR_BADSLOT:
+			case -NFS4ERR_BAD_HIGH_SLOT:
+			case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+			case -NFS4ERR_DEADSESSION:
+				nfs4_schedule_state_recovery(
+					server->nfs_client);
+				goto out;
 			case -NFS4ERR_STALE_CLIENTID:
 			case -NFS4ERR_STALE_STATEID:
 			case -NFS4ERR_EXPIRED: