From 9bd27ae4aafc9bfee6c8791f7d801ea16cc5622b Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 21 Oct 2014 14:07:33 +0200
Subject: [PATCH] f2fs: avoid returning uninitialized value to userspace from
 f2fs_trim_fs()

If user specifies too low end sector for trimming, f2fs_trim_fs() will
use uninitialized value as a number of trimmed blocks and returns it to
userspace. Initialize number of trimmed blocks early to avoid the
problem.

Coverity-id: 1248809
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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