tree 444bf4077836e828c8d882ddf7c06ef17b136a38
parent 67c3b705934af93a09a0f369346c2561499b73c4
author Sven Eckelmann <sven.eckelmann@gmx.de> 1284836475 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1285025389 -0700

Staging: batman-adv: Introduce if_list_lock to protect if_list

The update critical sections of if_list must be protected by a locking
primitive other than RCU. The iterator must also be protected by the
chosen locking mechanism.

The rtnl_lock in hardif_remove_interfaces must also be moved outside the
iterator primitive to ensure that we don't deadlock the kernel due to
differently nested locks in hardif_remove_interfaces and hard_if_event.

Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>