Hi,
On Wed, Jul 20, 2022 at 4:58 PM Irui Wang <irui.wang@xxxxxxxxxxxx> wrote:
>
> The "platform_get_resource(pdev, IORESOURCE_IRQ, 0)" is no longer
> used after commit a1a2b7125e107("of/platform: Drop static setup of
> IRQ resource from DT core"), so just remove the function in
> encoder driver to avoid driver probe failed.
>
> Signed-off-by: Irui Wang <irui.wang@xxxxxxxxxxxx>
> ---
> .../media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> index ea667b867b56..6d8964fb4fa2 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> @@ -228,7 +228,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
> {
> struct mtk_vcodec_dev *dev;
> struct video_device *vfd_enc;
> - struct resource *res;
> phandle rproc_phandle;
> enum mtk_vcodec_fw_type fw_type;
> int ret;
> @@ -272,13 +271,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
> goto err_res;
> }
>
> - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> - if (res == NULL) {
> - dev_err(&pdev->dev, "failed to get irq resource");
> - ret = -ENOENT;
> - goto err_res;
> - }
> -
> dev->enc_irq = platform_get_irq(pdev, 0);
platform_get_irq() returns a negative number on failure. You should
check for errors here as the previous check was removed.
The description of platform_get_irq() explicitly mentions:
Device drivers should check the return value for errors so as to
not pass a negative integer value to the request_irq() APIs.
Hans has queued up this patch, so maybe you could provide a follow-up
patch to fix this?
Regards
ChenYu
> irq_set_status_flags(dev->enc_irq, IRQ_NOAUTOEN);
> ret = devm_request_irq(&pdev->dev, dev->enc_irq,
> --
> 2.18.0
>
