diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86ad6bf2..8a7eb77233b4 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
 	int ret, len;
 	__le32 *buf;
-	int offb, offd;
+	int offb;
+	unsigned int offd;
 	const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
 	int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;