diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index 1e44d04d1b22..a43c0ce5e3d8 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -167,7 +167,7 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	mux->busses = devm_kzalloc(&pdev->dev,
-				   sizeof(mux->busses) * mux->pdata->bus_count,
+				   sizeof(*mux->busses) * mux->pdata->bus_count,
 				   GFP_KERNEL);
 	if (!mux->busses) {
 		dev_err(&pdev->dev, "Cannot allocate busses\n");