media: stih_cec: use new cec_notifier_parse_hdmi_phandle helper

The STI CEC driver increased the HDMI device refcount when
it shouldn't. Use the new helper function to ensure that that
doesn't happen and to simplify the driver code.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/platform/sti/cec/stih-cec.c b/drivers/media/platform/sti/cec/stih-cec.c
index d34099f75990101351abbbb10448a5363bc02038..fc37efe1d5542b0c22c4181ebe10056d35f3a546 100644 (file)
--- a/drivers/media/platform/sti/cec/stih-cec.c
+++ b/drivers/media/platform/sti/cec/stih-cec.c
@@ -301,26 +301,19 @@ static int stih_cec_probe(struct platform_device *pdev)
        struct device *dev = &pdev->dev;
        struct resource *res;
        struct stih_cec *cec;
-       struct device_node *np;
-       struct platform_device *hdmi_dev;
+       struct device *hdmi_dev;
        int ret;
 
+       hdmi_dev = cec_notifier_parse_hdmi_phandle(dev);
+
+       if (IS_ERR(hdmi_dev))
+               return PTR_ERR(hdmi_dev);
+
        cec = devm_kzalloc(dev, sizeof(*cec), GFP_KERNEL);
        if (!cec)
                return -ENOMEM;
 
-       np = of_parse_phandle(pdev->dev.of_node, "hdmi-phandle", 0);
-
-       if (!np) {
-               dev_err(&pdev->dev, "Failed to find hdmi node in device tree\n");
-               return -ENODEV;
-       }
-
-       hdmi_dev = of_find_device_by_node(np);
-       if (!hdmi_dev)
-               return -EPROBE_DEFER;
-
-       cec->notifier = cec_notifier_get(&hdmi_dev->dev);
+       cec->notifier = cec_notifier_get(hdmi_dev);
        if (!cec->notifier)
                return -ENOMEM;