1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 86dc21c728a5..f0215f850d2d 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -425,7 +425,7 @@ static int __init safe_init (void)
         if (vendor || product) {
                 info ("vendor: %x product: %x\n", vendor, product);
 
-                for (i = 0; i < (sizeof (id_table) / sizeof (struct usb_device_id)); i++) {
+                for (i = 0; i < ARRAY_SIZE(id_table); i++) {
                         if (!id_table[i].idVendor && !id_table[i].idProduct) {
                                 id_table[i].idVendor = vendor;
                                 id_table[i].idProduct = product;