Re: [PATCH] drm/sti: Handle return value of platform_get_irq_byname

From: Benjamin Gaignard
Date: Tue Nov 21 2017 - 04:14:21 EST


2017-11-17 11:36 GMT+01:00 Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>:
> platform_get_irq_byname() can fail here and we must check its return
> value.
>

Applied on drm-misc-next.

Thanks,
Benjamin

> Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
> ---
> drivers/gpu/drm/sti/sti_hdmi.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
> index 30f02d2..adabd41 100644
> --- a/drivers/gpu/drm/sti/sti_hdmi.c
> +++ b/drivers/gpu/drm/sti/sti_hdmi.c
> @@ -1414,6 +1414,11 @@ static int sti_hdmi_probe(struct platform_device *pdev)
> init_waitqueue_head(&hdmi->wait_event);
>
> hdmi->irq = platform_get_irq_byname(pdev, "irq");
> + if (hdmi->irq < 0) {
> + DRM_ERROR("Cannot get HDMI irq\n");
> + ret = hdmi->irq;
> + goto release_adapter;
> + }
>
> ret = devm_request_threaded_irq(dev, hdmi->irq, hdmi_irq,
> hdmi_irq_thread, IRQF_ONESHOT, dev_name(dev), hdmi);
> --
> 2.7.4
>