From 48785bb9fa39415d7553e234946442579dfcf591 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 19 Dec 2006 11:07:59 +0100
Subject: [PATCH] [PATCH] __blk_rq_unmap_user() fails to return error

If the bio is user copied, the copy back could return -EFAULT. Make
sure we return any error seen during unmapping.

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