[package] base-files: bring bridge port iface down before changing the mac (#7111)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21595 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/lib/network/config.sh b/package/base-files/files/lib/network/config.sh
index 32170bb..37dc208 100755 (executable)
--- a/package/base-files/files/lib/network/config.sh
+++ b/package/base-files/files/lib/network/config.sh
@@ -170,6 +170,8 @@ prepare_interface() {
                                        # result in another setup_interface() call, so we simply stop processing
                                        # the current event at this point.
                                }
+
+                               [ -n "$macaddr" ] && ifconfig "$iface" down 2>/dev/null >/dev/null
                                ifconfig "$iface" ${macaddr:+hw ether "${macaddr}"} up 2>/dev/null >/dev/null
                                return 1
                        }