diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 48718b7..76656ac 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -188,6 +188,11 @@
 		up(&dev->sem);
 		if (dev->parent)
 			up(&dev->parent->sem);
+
+		if (err > 0) 		/* success */
+			err = count;
+		else if (err == 0)	/* driver didn't accept device */
+			err = -ENODEV;
 	}
 	put_device(dev);
 	put_bus(bus);