diff --git a/net/core/dev.c b/net/core/dev.c
index d945379..bcb05cb 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4294,10 +4294,8 @@
 
 	slave->master = master;
 
-	if (old) {
-		synchronize_net();
+	if (old)
 		dev_put(old);
-	}
 	return 0;
 }
 EXPORT_SYMBOL(netdev_set_master);