From e32c9e6300e3af659cbfe45e90a1e7dcd3572ada Mon Sep 17 00:00:00 2001
From: Vaughan Cao <vaughan.cao@oracle.com>
Date: Thu, 29 Aug 2013 10:00:38 +0800
Subject: [PATCH] [SCSI] sg: checking sdp->detached isn't protected when open

@detached is set under the protection of sg_index_lock. Without getting the
lock, new sfp will be added during sg removal and there is no chance for it
to be picked out. So check with sg_index_lock held in sg_add_sfp().

Signed-off-by: Vaughan Cao <vaughan.cao@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
Reading git-format-patch failed