Found this on Coverty's linux bug database (http://linuxbugsdb.coverity.com).

The function pkt_iosched_process_queue makes a call to bdev_get_queue and
stores the result but never uses it, so it looks like it can be safely
removed.
Signed-off-by: Gabriel A. Devenyi <ace@staticwave.ca>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>