On Wed, 9 Dec 2020 at 20:42, Christophe JAILLET
<christophe.jaillet@xxxxxxxxxx> wrote:
>
> 'dma_request_chan()' calls should be balanced by a corresponding
> 'dma_release_channel()' call.
>
> Add the missing call both in the error handling path of the probe function
> and in the remove function.
>
> Fixes: ff65ffe46d28 ("mmc: Add Actions Semi Owl SoCs SD/MMC driver")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Applied for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/owl-mmc.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/owl-mmc.c b/drivers/mmc/host/owl-mmc.c
> index 53b81582f1af..5490962dc8e5 100644
> --- a/drivers/mmc/host/owl-mmc.c
> +++ b/drivers/mmc/host/owl-mmc.c
> @@ -640,7 +640,7 @@ static int owl_mmc_probe(struct platform_device *pdev)
> owl_host->irq = platform_get_irq(pdev, 0);
> if (owl_host->irq < 0) {
> ret = -EINVAL;
> - goto err_free_host;
> + goto err_release_channel;
> }
>
> ret = devm_request_irq(&pdev->dev, owl_host->irq, owl_irq_handler,
> @@ -648,19 +648,21 @@ static int owl_mmc_probe(struct platform_device *pdev)
> if (ret) {
> dev_err(&pdev->dev, "Failed to request irq %d\n",
> owl_host->irq);
> - goto err_free_host;
> + goto err_release_channel;
> }
>
> ret = mmc_add_host(mmc);
> if (ret) {
> dev_err(&pdev->dev, "Failed to add host\n");
> - goto err_free_host;
> + goto err_release_channel;
> }
>
> dev_dbg(&pdev->dev, "Owl MMC Controller Initialized\n");
>
> return 0;
>
> +err_release_channel:
> + dma_release_channel(owl_host->dma);
> err_free_host:
> mmc_free_host(mmc);
>
> @@ -674,6 +676,7 @@ static int owl_mmc_remove(struct platform_device *pdev)
>
> mmc_remove_host(mmc);
> disable_irq(owl_host->irq);
> + dma_release_channel(owl_host->dma);
> mmc_free_host(mmc);
>
> return 0;
> --
> 2.27.0
>
