From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 27 Jan 2015 20:13:40 +0000 (+0100)
Subject: PM / Domains: Don't allow an existing generic_pm_domain_data
X-Git-Tag: fixes-v4.0-rc1~160^2~3^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14b530648834c9ec9853954750957bab0f792538;p=pandora-kernel.git

PM / Domains: Don't allow an existing generic_pm_domain_data

When adding a device to a genpd, a struct generic_pm_domain_data is
allocated per device.

Verify that there are no existing generic_pm_domain_data for the device
we are about to add, since that tells us it has already been added to a
genpd.

When genpd supported PM domain device callbacks, this was a valid
scenario. Now it isn't so let's return an error code.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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