• Rafael J. Wysocki's avatar
    PM / Runtime: Fix pm_runtime_suspended() · f08f5a0a
    Rafael J. Wysocki authored
    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: default avatarRafael J. Wysocki <rjw@sisk.pl>
    Cc: stable@kernel.org
    f08f5a0a
runtime_pm.txt 34.3 KB