esas2r: fix an oversight in setting return value

The patch moves an error code assigment to a 'default' case
in the previous switch statement.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/scsi/esas2r/esas2r_ioctl.c

@@ -1524,9 +1524,12 @@ int esas2r_ioctl_handler(void *hostdata, int cmd, void __user *arg)
 		case -EINVAL:
 			ioctl->header.return_code = IOCTL_INVALID_PARAM;
 			break;
-		}
 
+		default:
 			ioctl->header.return_code = IOCTL_GENERAL_ERROR;
+			break;
+		}
+
 	}
 
 	/* Always copy the buffer back, if only to pick up the status */