tree 02cca4e453bab75aeb09126c67cd733e182cf642
parent de37cd49b5a54facef174cf34496919857436e8f
author Linus Lüssing <linus.luessing@web.de> 1273261626 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1273610557 -0700

Staging: batman-adv: only modify hna-table on active module

If we haven't set the module to MODULE_ACTIVE state before (in general,
no interface has yet been added to batman-adv) then the hna table is not
initialised yet. If the kernel changes the mac address of the bat0
interface at this moment then an hna_local_add() called by interface_set_mac_addr()
then resulted in a null pointer derefernce. With this patch we are now
explicitly checking before if the state is MODULE_ACTIVE right now so
that we can assume having an initialised hna table.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>