[PATCH] drm/exynos: hdmi: add null check for hdmiphy_port

[Seung-Woo Kim]

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 at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index fd8141f..54d97f7 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2520,7 +2520,8 @@ 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);
-- 
1.7.4.1