From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Mon, 8 Aug 2011 21:43:22 +0000 (+0200)
Subject: PM / Domains: Make pm_genpd_poweron() always survive parent removal
X-Git-Tag: v3.2-rc1~178^2~23^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e08cf429697090d0fac57d493dc7b6de17a5eee;p=pandora-kernel.git

PM / Domains: Make pm_genpd_poweron() always survive parent removal

If pm_genpd_remove_subdomain() is called to remove a PM domain's
subdomain and pm_genpd_poweron() is called for that subdomain at
the same time, and the pm_genpd_poweron() called by it recursively
for the parent returns an error, the first pm_genpd_poweron()'s
error code path will attempt to decrement the subdomain counter of
a PM domain that it's not a subdomain of any more.

Rearrange the code in pm_genpd_poweron() to prevent this from
happening.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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