From: Hans Verkuil Date: Wed, 10 Apr 2019 09:13:29 +0000 (-0400) Subject: media: meson: ao-cec: use new cec_notifier_parse_hdmi_phandle helper X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6bc37729df640748ed1718e3f150d63cbff1dc7e;p=linux.git media: meson: ao-cec: use new cec_notifier_parse_hdmi_phandle helper The meson 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: Neil Armstrong Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/meson/ao-cec.c b/drivers/media/platform/meson/ao-cec.c index cd4be38ab5acc..facf9b029e797 100644 --- a/drivers/media/platform/meson/ao-cec.c +++ b/drivers/media/platform/meson/ao-cec.c @@ -601,20 +601,14 @@ static const struct cec_adap_ops meson_ao_cec_ops = { static int meson_ao_cec_probe(struct platform_device *pdev) { struct meson_ao_cec_device *ao_cec; - struct platform_device *hdmi_dev; - struct device_node *np; + struct device *hdmi_dev; struct resource *res; int ret, irq; - np = of_parse_phandle(pdev->dev.of_node, "hdmi-phandle", 0); - if (!np) { - dev_err(&pdev->dev, "Failed to find hdmi node\n"); - return -ENODEV; - } + hdmi_dev = cec_notifier_parse_hdmi_phandle(&pdev->dev); - 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); ao_cec = devm_kzalloc(&pdev->dev, sizeof(*ao_cec), GFP_KERNEL); if (!ao_cec) @@ -622,7 +616,7 @@ static int meson_ao_cec_probe(struct platform_device *pdev) spin_lock_init(&ao_cec->cec_reg_lock); - ao_cec->notify = cec_notifier_get(&hdmi_dev->dev); + ao_cec->notify = cec_notifier_get(hdmi_dev); if (!ao_cec->notify) return -ENOMEM;