From: Vaughan Cao <vaughan.cao@oracle.com>
Date: Thu, 29 Aug 2013 02:00:38 +0000 (+0800)
Subject: [SCSI] sg: checking sdp->detached isn't protected when open
X-Git-Tag: v3.12-rc1~180^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e32c9e6300e3af659cbfe45e90a1e7dcd3572ada;p=pandora-kernel.git

[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>
---

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