From: Wenbo Wang <wenbo.wang@memblaze.com>
Date: Fri, 20 Mar 2015 05:04:54 +0000 (-0400)
Subject: Fix bug in blk_rq_merge_ok
X-Git-Tag: omap-for-v4.1/fixes-rc1~269^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ee8e4f3983c4ff700958a6099c8fd212ea67b94;p=pandora-kernel.git

Fix bug in blk_rq_merge_ok

Use the right array index to reference the last
element of rq->biotail->bi_io_vec[]

Signed-off-by: Wenbo Wang <wenbo.wang@memblaze.com>
Reviewed-by: Chong Yuan <chong.yuan@memblaze.com>
Fixes: 66cb45aa41315 ("block: add support for limiting gaps in SG lists")
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
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