diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 1a977acd6883..857d39f3438d 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1032,7 +1032,8 @@ static int mtk_eint_init(struct mtk_pinctrl *pctl, struct platform_device *pdev)
 
 	pctl->eint->nbase = 1;
 	/* mtk-eint expects an array */
-	pctl->eint->base = devm_kzalloc(pctl->dev, sizeof(pctl->eint->base), GFP_KERNEL);
+	pctl->eint->base = devm_kzalloc(pctl->dev, sizeof(*pctl->eint->base),
+					GFP_KERNEL);
 	if (!pctl->eint->base)
 		return -ENOMEM;