This fixes regression introduced in my recent ledtrig-netdev commit.
Events triggered by different interfaces were stopping timer so it
wasn't working for tx/rx mode.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Backport of r48072
git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@48074 3c298f89-4303-0410-b956-a3cf2f4a3e73