[PATCH] drm/imx: Add error handling in dw_hdmi_imx_probe()

[liuhaoran]

This patch adds error-handling for the of_match_node()
inside the dw_hdmi_imx_probe().

Signed-off-by: liuhaoran <liuhaora...@163.com>
---
 drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c 
b/drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c
index a2277a0d6d06..3b25f018b2a6 100644
--- a/drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c
@@ -224,6 +224,9 @@ static int dw_hdmi_imx_probe(struct platform_device *pdev)
        struct imx_hdmi *hdmi;
        int ret;
 
+       if (!match)
+               return -ENODEV;
+
        hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
        if (!hdmi)
                return -ENOMEM;
-- 
2.17.1