From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Thu, 23 Oct 2014 16:46:48 +0000 (+0530)
Subject: block: fix wrong error return in elevator_init()
X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~40^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d32f6b57523b6e9b2e39e990e056f9882a6f099a;p=pandora-kernel.git

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>
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