From e3a7c52de95629cbb0c2840e787523a9393b1fc6 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 10 Apr 2019 05:13:31 -0400 Subject: [PATCH] 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 Acked-by: Benjamin Gaignard Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/sti/cec/stih-cec.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/media/platform/sti/cec/stih-cec.c b/drivers/media/platform/sti/cec/stih-cec.c index d34099f75990..fc37efe1d554 100644 --- 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;