mei: check whether hw start has succeeded

hw start may fail therefore the reset flow has
to check for the return value

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 1aa4997..7b918b2 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -544,9 +544,9 @@
 	return dev->ops->hw_reset(dev, enable);
 }
 
-static inline void mei_hw_start(struct mei_device *dev)
+static inline int mei_hw_start(struct mei_device *dev)
 {
-	dev->ops->hw_start(dev);
+	return dev->ops->hw_start(dev);
 }
 
 static inline void mei_clear_interrupts(struct mei_device *dev)