diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 389a3ee..5bcd043 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1805,7 +1805,7 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev)
 	if (match) {
 		pdata = of_get_hsmmc_pdata(&pdev->dev);
 		if (match->data) {
-			u16 *offsetp = match->data;
+			const u16 *offsetp = match->data;
 			pdata->reg_offset = *offsetp;
 		}
 	}