Minor coding style fixups in resume code and added a bit of debugging help.

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/base/power/runtime.c

@@ -12,12 +12,11 @@
 
 static void runtime_resume(struct device * dev)
 {
+	dev_dbg(dev, "resuming\n");
 	if (!dev->power.power_state)
 		return;
-	if (! resume_device(dev))
+	if (!resume_device(dev))
 		dev->power.power_state = 0;
-
-	return;
 }