[PATCH 3.10 92/97] dm mpath: fix stalls when handling invalid ioctls

3.10-stable review patch. If anyone has any objections, please let me know. -- From: Hannes Reinecke commit a1989b330093578ea5470bea0a00f940c444c466 upstream. An invalid ioctl will never be valid, irrespective of whether multipath has active paths or not. So for invalid

[PATCH 3.10 92/97] dm mpath: fix stalls when handling invalid ioctls

3.10-stable review patch. If anyone has any objections, please let me know. -- From: Hannes Reinecke h...@suse.de commit a1989b330093578ea5470bea0a00f940c444c466 upstream. An invalid ioctl will never be valid, irrespective of whether multipath has active paths or not. So for