On 03/06/2020 19:38, Navid Emamdoost wrote:
> Calling pm_runtime_get_sync increments the counter even in case of
> failure, causing incorrect ref count. Call pm_runtime_put if
> pm_runtime_get_sync fails.
> 
> Signed-off-by: Navid Emamdoost <[email protected]>
> ---
>  drivers/dma/tegra210-adma.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
> index c4ce5dfb149b..87f2a1bed3aa 100644
> --- a/drivers/dma/tegra210-adma.c
> +++ b/drivers/dma/tegra210-adma.c
> @@ -869,8 +869,10 @@ static int tegra_adma_probe(struct platform_device *pdev)
>       pm_runtime_enable(&pdev->dev);
>  
>       ret = pm_runtime_get_sync(&pdev->dev);
> -     if (ret < 0)
> +     if (ret < 0) {
> +             pm_runtime_put_sync(&pdev->dev);
>               goto rpm_disable;
> +     }

I would prefer it if you did not add the pm_runtime_put_sync() call here
because there is already one in the error path that can be used.

Jon

-- 
nvpublic

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