mutex_destroy is missing in remove.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16926
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 1125ed408c)
Link: https://github.com/openwrt/openwrt/pull/17097
Signed-off-by: Petr Štetiar <ynezz@true.cz>