linux-kernel - [PATCH 1/1] drm/mediatek: do not dereference NULL

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Message-Id: <1463605190-5323-1-git-send-email-xypron.glpk@gmx.de>
Date:	Wed, 18 May 2016 22:59:50 +0200
From:	Heinrich Schuchardt <xypron.glpk@....de>
To:	David Airlie <airlied@...ux.ie>,
	Matthias Brugger <matthias.bgg@...il.com>
Cc:	Jie Qiu <jie.qiu@...iatek.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Heinrich Schuchardt <xypron.glpk@....de>
Subject: [PATCH 1/1] drm/mediatek: do not dereference NULL

After having verified that dpi is NULL we should not
dereference it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index d05ca79..3dbd00d 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -433,7 +433,7 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
 	unsigned int factor;
 
 	if (!dpi) {
-		dev_err(dpi->dev, "invalid argument\n");
+		dev_err(NULL, "invalid argument\n");
 		return -EINVAL;
 	}
 
-- 
2.1.4