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SubjectRe: [PATCH 2/4] media: davinci: vpif: fix unbalanced runtime PM enable
Hi Johan,

Thank you for the patch.

On Wed, Dec 22, 2021 at 2:20 PM Johan Hovold <johan@kernel.org> wrote:
>
> Make sure to disable runtime PM before returning on probe errors.
>
> Fixes: 479f7a118105 ("[media] davinci: vpif: adaptions for DT support")
> Cc: stable@vger.kernel.org # 4.12: 4024d6f601e3c
> Cc: Kevin Hilman <khilman@baylibre.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
> drivers/media/platform/davinci/vpif.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
> index 9752a5ec36f7..1f5eacf48580 100644
> --- a/drivers/media/platform/davinci/vpif.c
> +++ b/drivers/media/platform/davinci/vpif.c
> @@ -428,6 +428,7 @@ static int vpif_probe(struct platform_device *pdev)
> static struct resource *res_irq;
> struct platform_device *pdev_capture, *pdev_display;
> struct device_node *endpoint = NULL;
> + int ret;
>
> vpif_base = devm_platform_ioremap_resource(pdev, 0);
> if (IS_ERR(vpif_base))
> @@ -456,8 +457,8 @@ static int vpif_probe(struct platform_device *pdev)
> res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> if (!res_irq) {
> dev_warn(&pdev->dev, "Missing IRQ resource.\n");
> - pm_runtime_put(&pdev->dev);
Maybe just add pm_runtime_disable(&pdev->dev); here, rest diff won't
be required.

Cheers,
Prabhakar

> - return -EINVAL;
> + ret = -EINVAL;
> + goto err_put_rpm;
> }
>
> pdev_capture = devm_kzalloc(&pdev->dev, sizeof(*pdev_capture),
> @@ -491,6 +492,12 @@ static int vpif_probe(struct platform_device *pdev)
> }
>
> return 0;
> +
> +err_put_rpm:
> + pm_runtime_put(&pdev->dev);
> + pm_runtime_disable(&pdev->dev);
> +
> + return ret;
> }
>
> static int vpif_remove(struct platform_device *pdev)
> --
> 2.32.0
>

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