From f84e7e41e1b88547218a3c3b1eb528005e9afdb4 Mon Sep 17 00:00:00 2001
From: Tejun Heo <htejun@gmail.com>
Date: Wed, 22 Nov 2006 11:21:31 +0900
Subject: [PATCH] [PATCH] libata: make sure sdev doesn't go away while
 rescanning

ata_scsi_dev_rescan() doesn't synchronize against SCSI device detach
and the target sdev might go away in the middle.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
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