From d19d744685f47f1bb3d39b3ec51eb50afe5ff47d Mon Sep 17 00:00:00 2001
From: Sabrina Dubroca <sd@queasysnail.net>
Date: Tue, 26 Aug 2014 16:14:02 +0200
Subject: [PATCH] block: fix error handling in sg_io

Before commit 2cada584b200 ("block: cleanup error handling in sg_io"),
we had ret = 0 before entering the last big if block of sg_io.

Since 2cada584b200, ret = -EFAULT, which breaks hdparm:

/dev/sda:
 setting Advanced Power Management level to 0xc8 (200)
 HDIO_DRIVE_CMD failed: Bad address
 APM_level      = 128

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Fixes: 2cada584b200 ("block: cleanup error handling in sg_io")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
Reading git-format-patch failed