On Sun, Mar 06, 2022 at 06:44:56PM +0100, Christophe JAILLET wrote:
> A dma_free_coherent() call is missing in the error handling path of the
> probe, as already done in the remove function.
>
> Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> I've not been able to find a Fixes tag because of the renaming of
> function and files.
> However, it looks old (before 2008)
You did add a fixes tag and it's from 2012. :P
> ---
> drivers/mmc/host/wmt-sdmmc.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
> index 163ac9df8cca..8e18f01c0938 100644
> --- a/drivers/mmc/host/wmt-sdmmc.c
> +++ b/drivers/mmc/host/wmt-sdmmc.c
> @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev)
> return 0;
> fail6:
> clk_put(priv->clk_sdmmc);
> + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16,
> + priv->dma_desc_buffer, priv->dma_desc_device_addr);
> fail5:
> free_irq(dma_irq, priv);
This isn't quite right. If of_clk_get() fails it should call
dma_free_coherent() but it does not. You need to add:
fail6:
clk_put(priv->clk_sdmmc);
+fail5_and_a_half:
+ dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16,
+ priv->dma_desc_buffer, priv->dma_desc_device_addr);
fail5:
free_irq(dma_irq, priv);
regards,
dan carpenter
