PM / Runtime: Avoid resuming devices again in pm_runtime_force_resume()

If the runtime PM status of the device isn't RPM_SUSPENDED, prevent the
pm_runtime_force_resume() from invoking the ->runtime_resume() callback
for the device, as it's not the expected behaviour from the subsystem/driver.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/base/power/runtime.c

@@ -1506,6 +1506,9 @@ int pm_runtime_force_resume(struct device *dev)
 		goto out;
 	}
 
+	if (!pm_runtime_status_suspended(dev))
+		goto out;
+
 	ret = pm_runtime_set_active(dev);
 	if (ret)
 		goto out;