From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Thu, 16 Dec 2010 16:11:58 +0000 (+0100)
Subject: PM / Runtime: Fix pm_runtime_suspended()
X-Git-Tag: v2.6.37-rc7~21^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f08f5a0add20834d3f3d876dfe08005a5df656db;p=pandora-kernel.git

PM / Runtime: Fix pm_runtime_suspended()

There are some situations (e.g. in __pm_generic_call()), where
pm_runtime_suspended() is used to decide whether or not to execute
a device's (system) ->suspend() callback.  The callback is not
executed if pm_runtime_suspended() returns true, but it does so
for devices that don't even support runtime PM, because the
power.disable_depth device field is ignored by it.  This leads to
problems (i.e. devices are not suspened when they should), so rework
pm_runtime_suspended() so that it returns false if the device's
power.disable_depth field is different from zero.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
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