From: Paul Taysom <taysom@chromium.org>
Date: Fri, 9 May 2014 06:06:28 +0000 (+0900)
Subject: drm/exynos: check for null pointers in error handling
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b21a3bf4418899bcb74cbef2e4d3bb976a6f1157;p=linux-beck.git

drm/exynos: check for null pointers in error handling

Smatch error from arm build: drivers/gpu/drm/exynos/
exynos_hdmi.c:2374 hdmi_probe() error: potential NULL
dereference 'hdata->hdmiphy_port'.

Added check for hdata->hdmiphy_port that it is not NULL.

Signed-off-by: Paul Taysom <taysom@chromium.org>
Signed-off-by: Rahul Sharma <Rahul.Sharma@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 73a7acb1283c..0dc9e3c9d103 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2174,7 +2174,8 @@ static int hdmi_probe(struct platform_device *pdev)
 	return exynos_drm_component_add(&pdev->dev, &hdmi_component_ops);
 
 err_hdmiphy:
-	put_device(&hdata->hdmiphy_port->dev);
+	if (hdata->hdmiphy_port)
+		put_device(&hdata->hdmiphy_port->dev);
 err_ddc:
 	put_device(&hdata->ddc_adpt->dev);
 	return ret;