From 013448c59b8a8cf71a5ff89641f78b620671ccb0 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 17 Jul 2012 14:47:30 -0400
Subject: [PATCH] SUNRPC: Add a missing spin_unlock to
 gss_mech_list_pseudoflavors

The patch "SUNRPC: Add rpcauth_list_flavors()" introduces a new error
path in gss_mech_list_pseudoflavors, but fails to release the spin lock.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/auth_gss/gss_mech_switch.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c
index 6ac5dfcd2928..b174fcd9ff4c 100644
--- a/net/sunrpc/auth_gss/gss_mech_switch.c
+++ b/net/sunrpc/auth_gss/gss_mech_switch.c
@@ -257,8 +257,10 @@ int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr, int size)
 	spin_lock(&registered_mechs_lock);
 	list_for_each_entry(pos, &registered_mechs, gm_list) {
 		for (j = 0; j < pos->gm_pf_num; j++) {
-			if (i >= size)
+			if (i >= size) {
+				spin_unlock(&registered_mechs_lock);
 				return -ENOMEM;
+			}
 			array_ptr[i++] = pos->gm_pfs[j].pseudoflavor;
 		}
 	}