From 4d34c9267db7af6c23c29adb73a58882a250c2e0 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Wed, 10 Apr 2019 05:13:32 -0400
Subject: [PATCH] media: tegra_cec: use new cec_notifier_parse_hdmi_phandle
helper
The Tegra 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>
---
drivers/media/platform/tegra-cec/tegra_cec.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/media/platform/tegra-cec/tegra_cec.c b/drivers/media/platform/tegra-cec/tegra_cec.c
index aba488cd0e645..7fb3a4fa07c1e 100644
--- a/drivers/media/platform/tegra-cec/tegra_cec.c
+++ b/drivers/media/platform/tegra-cec/tegra_cec.c
@@ -327,21 +327,15 @@ static const struct cec_adap_ops tegra_cec_ops = {
static int tegra_cec_probe(struct platform_device *pdev)
{
- struct platform_device *hdmi_dev;
- struct device_node *np;
+ struct device *hdmi_dev;
struct tegra_cec *cec;
struct resource *res;
int ret = 0;
- np = of_parse_phandle(pdev->dev.of_node, "hdmi-phandle", 0);
+ hdmi_dev = cec_notifier_parse_hdmi_phandle(&pdev->dev);
- if (!np) {
- dev_err(&pdev->dev, "Failed to find hdmi node in device tree\n");
+ if (!hdmi_dev)
return -ENODEV;
- }
- hdmi_dev = of_find_device_by_node(np);
- if (hdmi_dev == NULL)
- return -EPROBE_DEFER;
cec = devm_kzalloc(&pdev->dev, sizeof(struct tegra_cec), GFP_KERNEL);
@@ -400,7 +394,7 @@ static int tegra_cec_probe(struct platform_device *pdev)
goto clk_error;
}
- cec->notifier = cec_notifier_get(&hdmi_dev->dev);
+ cec->notifier = cec_notifier_get(hdmi_dev);
if (!cec->notifier) {
ret = -ENOMEM;
goto clk_error;
--
GitLab