drm/exynos: hdmi: add null check for hdmiphy_port

The hdmiphy can be apb and hdmiphy_port can be null. So before
accessing hdmiphy_port, it should be checked.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index d08e00d1f4edeb334d0c91a67fd6c6fa67186213..562966db2aa13eec90a5dbf588666675f8674892 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2521,7 +2521,8 @@ static int hdmi_remove(struct platform_device *pdev)
        if (hdata->res.reg_hdmi_en)
                regulator_disable(hdata->res.reg_hdmi_en);
 
-       put_device(&hdata->hdmiphy_port->dev);
+       if (hdata->hdmiphy_port)
+               put_device(&hdata->hdmiphy_port->dev);
        put_device(&hdata->ddc_adpt->dev);
 
        pm_runtime_disable(&pdev->dev);