From 4f65977df0b9a667fdcd85b95d457a220c94113f Mon Sep 17 00:00:00 2001
From: Tejun Heo <htejun@gmail.com>
Date: Sat, 1 Apr 2006 01:38:18 +0900
Subject: [PATCH] [PATCH] libata: make ata_set_mode() handle no-device case
 properly

Make ata_set_mode() return without doing anything if there is no
device on the port.  This is in preparation for ata_bus_probe()
changes.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Reading git-format-patch failed