From 90515e7f5d7d24cbb2a4038a3f1b5cfa2921aa17 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Tue, 7 Jan 2014 17:26:58 +0800
Subject: [PATCH] Btrfs: handle EAGAIN case properly in btrfs_drop_snapshot()

We may return early in btrfs_drop_snapshot(), we shouldn't
call btrfs_std_err() for this case, fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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