From a6f9bf4d2f965b862b95213303d154e02957eed8 Mon Sep 17 00:00:00 2001
From: Levente Kurusa <levex@linux.com>
Date: Tue, 6 May 2014 15:57:48 +0200
Subject: [PATCH] libata: clean up ZPODD when a port is detached

When a ZPODD device is unbound via sysfs, the ACPI notify handler
is not removed. This causes panics as observed in Bug #74601. The
panic only happens when the wake happens from outside the kernel
(i.e. inserting a media or pressing a button). Add a loop to
ata_port_detach which loops through the port's devices and checks
if zpodd is enabled, if so call zpodd_exit.

Cc: stable@vger.kernel.org
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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