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media: s5p_cec: use new cec_notifier_parse_hdmi_phandle helper

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The S5P 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>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-04-10 05:13:30 -04:00 committed by Mauro Carvalho Chehab
parent 6bc37729df
commit ba9db909d3
1 changed files with 5 additions and 11 deletions
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16
drivers/media/platform/s5p-cec/s5p_cec.c
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@ -178,22 +178,16 @@ static const struct cec_adap_ops s5p_cec_adap_ops = {
static int s5p_cec_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np;
struct platform_device *hdmi_dev;
struct device *hdmi_dev;
struct resource *res;
struct s5p_cec_dev *cec;
bool needs_hpd = of_property_read_bool(pdev->dev.of_node, "needs-hpd");
int ret;
np = of_parse_phandle(pdev->dev.of_node, "hdmi-phandle", 0);
hdmi_dev = cec_notifier_parse_hdmi_phandle(dev);
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 == NULL)
return -EPROBE_DEFER;
if (IS_ERR(hdmi_dev))
return PTR_ERR(hdmi_dev);
cec = devm_kzalloc(&pdev->dev, sizeof(*cec), GFP_KERNEL);
if (!cec)
@ -224,7 +218,7 @@ static int s5p_cec_probe(struct platform_device *pdev)
if (IS_ERR(cec->reg))
return PTR_ERR(cec->reg);
cec->notifier = cec_notifier_get(&hdmi_dev->dev);
cec->notifier = cec_notifier_get(hdmi_dev);
if (cec->notifier == NULL)
return -ENOMEM;