[PATCH] runtime PM deadlock fix

From: Alexander Atanasov <alex@ssi.bg>

dpm_runtime_suspend holds dpm_sem and calls dpm_runtime_resume which
deadlocks.  Directly call runtime_resume instead.

drivers/base/power/runtime.c

@@ -51,7 +51,7 @@ int dpm_runtime_suspend(struct device * dev, u32 state)
 		goto Done;
 
 	if (dev->power.power_state)
-		dpm_runtime_resume(dev);
+		runtime_resume(dev);
 
 	if (!(error = suspend_device(dev,state)))
 		dev->power.power_state = state;