[PATCH net] net: bridge: vlan: fix error return code in __vlan_add()

[Zhang Changzhong]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: f8ed289fab84 ("bridge: vlan: use br_vlan_(get|put)_master to deal with 
refcounts")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
---
 net/bridge/br_vlan.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 3e493eb..08c7741 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -266,8 +266,10 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
                }
 
                masterv = br_vlan_get_master(br, v->vid, extack);
-               if (!masterv)
+               if (!masterv) {
+                       err = -ENOMEM;
                        goto out_filt;
+               }
                v->brvlan = masterv;
                if (br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)) {
                        v->stats = netdev_alloc_pcpu_stats(struct 
br_vlan_stats);
-- 
2.9.5