[PATCH net] net: bridge: check __vlan_vid_del for error

[Vivien Didelot]

Since __vlan_del can return an error code, change its inner function
__vlan_vid_del to return an eventual error from switchdev_port_obj_del.

Signed-off-by: Vivien Didelot <vivien.dide...@savoirfairelinux.com>
---
 net/bridge/br_vlan.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 3cd8cc9..5f5a02b 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -117,10 +117,11 @@ out_filt:
        return err;
 }
 
-static void __vlan_vid_del(struct net_device *dev, struct net_bridge *br,
-                          u16 vid)
+static int __vlan_vid_del(struct net_device *dev, struct net_bridge *br,
+                         u16 vid)
 {
        const struct net_device_ops *ops = dev->netdev_ops;
+       int err = 0;
 
        /* If driver uses VLAN ndo ops, use 8021q to delete vid
         * on device, otherwise try switchdev ops to delete vid.
@@ -137,8 +138,12 @@ static void __vlan_vid_del(struct net_device *dev, struct 
net_bridge *br,
                        },
                };
 
-               switchdev_port_obj_del(dev, &vlan_obj);
+               err = switchdev_port_obj_del(dev, &vlan_obj);
+               if (err == -EOPNOTSUPP)
+                       err = 0;
        }
+
+       return err;
 }
 
 static int __vlan_del(struct net_port_vlans *v, u16 vid)
@@ -151,7 +156,11 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
 
        if (v->port_idx) {
                struct net_bridge_port *p = v->parent.port;
-               __vlan_vid_del(p->dev, p->br, vid);
+               int err;
+
+               err = __vlan_vid_del(p->dev, p->br, vid);
+               if (err)
+                       return err;
        }
 
        clear_bit(vid, v->vlan_bitmap);
-- 
2.5.1

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