From: Lin Ming <ming.m.lin@intel.com>
Date: Mon, 5 Dec 2011 01:20:26 +0000 (+0800)
Subject: [SCSI] sd: check runtime PM status in sd_shutdown
X-Git-Tag: v3.3-rc1~128^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54f57588463db1105f4a93b2902a6f95cb8f796a;p=pandora-kernel.git

[SCSI] sd: check runtime PM status in sd_shutdown

sd_shutdown is called during reboot/poweroff.
It may fail if parent device, for example, ata port, was runtime suspended.

Fix it by checking runtime PM status of sd.
Exit immediately if sd was runtime suspended already.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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