block: fix wrong error return in elevator_init()
authorSudip Mukherjee <sudipm.mukherjee@gmail.com>
Thu, 23 Oct 2014 16:46:48 +0000 (22:16 +0530)
committerJens Axboe <axboe@fb.com>
Thu, 23 Oct 2014 18:35:42 +0000 (12:35 -0600)
commitd32f6b57523b6e9b2e39e990e056f9882a6f099a
tree2e7f132eb3583a235cf9a8e0dbe876db32c69a2a
parent84ce0f0e94ac97217398b3b69c21c7a62ebeed05
block: fix wrong error return in elevator_init()

while compiling integer err was showing as a set but unused variable.
elevator_init_fn can be either cfq_init_queue or deadline_init_queue
or noop_init_queue.
all three of these functions are returning -ENOMEM if they fail to
allocate the queue.
so we should actually be returning the error code rather than
returning 0 always.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/elevator.c