From d2e73fcceb18570e82cf3f4725b9e4dbd6cb3c31 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Tue, 2 Jun 2015 09:22:34 -0600
Subject: [PATCH] buffer: remove unusued 'ret' variable

Merge hickup on my part, due to a clash between the writeback
changes and the EOPNOTSUPP removal in _submit_bh().

Signed-off-by: Jens Axboe <axboe@fb.com>
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