diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c
index ce0b0b4e3a57..1ec523b0e932 100644
--- a/drivers/net/usb/kalmia.c
+++ b/drivers/net/usb/kalmia.c
@@ -114,14 +114,14 @@ kalmia_init_and_get_ethernet_addr(struct usbnet *dev, u8 *ethernet_addr)
 		return -ENOMEM;
 
 	memcpy(usb_buf, init_msg_1, 12);
-	status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_1)
-		/ sizeof(init_msg_1[0]), usb_buf, 24);
+	status = kalmia_send_init_packet(dev, usb_buf, ARRAY_SIZE(init_msg_1),
+					 usb_buf, 24);
 	if (status != 0)
 		return status;
 
 	memcpy(usb_buf, init_msg_2, 12);
-	status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_2)
-		/ sizeof(init_msg_2[0]), usb_buf, 28);
+	status = kalmia_send_init_packet(dev, usb_buf, ARRAY_SIZE(init_msg_2),
+					 usb_buf, 28);
 	if (status != 0)
 		return status;