From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Wed, 12 Jun 2013 13:08:55 +0000 (+0200)
Subject: cpuidle: Check if device is already registered
X-Git-Tag: v3.12-rc1~178^2~5^2~10^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c878a52d3c7cabab5b24460825c24eafd8be7058;p=pandora-kernel.git

cpuidle: Check if device is already registered

Make __cpuidle_register_device() check whether or not the device has
been registered already and return -EBUSY immediately if that's the
case.

[rjw: Changelog]
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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