Hi, Chun-Kuang: On Fri, Dec 31, 2021 at 12:31:33AM +0800, Chun-Kuang Hu wrote: > > diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c > > index 28ad9403c441..67b005d5b9e3 100644 > > --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c > > +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c > > @@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) > > return -ENOMEM; > > > > mipi_tx->driver_data = of_device_get_match_data(dev); > > + if (!mipi_tx->driver_data) > > I'm confused. mtk_mipi_tx_probe() is called because this device node's > compatible match one in mtk_mipi_tx_match[]. So I think the return > value of of_device_get_match_data(dev) would not be NULL. If this is > true, this checking is redundant. > I think your are right, this checking is redundant. Thanks for your reply. Regards, Miaoqian.
