diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index fb7b289fa09f..f81046f0e68a 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -1854,6 +1854,7 @@ round_4(unsigned int x)
 		case 1: --x;
 			break;
 		case 2: ++x;
+			/* fall through */
 		case 3: ++x;
 	}
 	return x;