net: dsa: hellcreek: fix broken backpressure in .port_fdb_dump

[linux-2.6-microblaze.git] / drivers / net / dsa / hirschmann / hellcreek.c

diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
index 9fdcc4b..5c54ae1 100644 (file)
--- a/drivers/net/dsa/hirschmann/hellcreek.c
+++ b/drivers/net/dsa/hirschmann/hellcreek.c
@@ -912,6 +912,7 @@ static int hellcreek_fdb_dump(struct dsa_switch *ds, int port,
 {
        struct hellcreek *hellcreek = ds->priv;
        u16 entries;
+       int ret = 0;
        size_t i;
 
        mutex_lock(&hellcreek->reg_lock);
@@ -943,12 +944,14 @@ static int hellcreek_fdb_dump(struct dsa_switch *ds, int port,
                if (!(entry.portmask & BIT(port)))
                        continue;
 
-               cb(entry.mac, 0, entry.is_static, data);
+               ret = cb(entry.mac, 0, entry.is_static, data);
+               if (ret)
+                       break;
        }
 
        mutex_unlock(&hellcreek->reg_lock);
 
-       return 0;
+       return ret;
 }
 
 static int hellcreek_vlan_filtering(struct dsa_switch *ds, int port,