Re: [PATCH -next] dmaengine: ste_dma40: fix error return code in d40_probe()

[Andy Shevchenko]

Have you check the ux500-dma40 branch?

https://git.kernel.org/cgit/linux/kernel/git/linusw/linux-stericsson.git/log/?h=ux500-dma40

On Tue, May 28, 2013 at 12:06 PM, Wei Yongjun <weiyj.lk@xxxxxxxxx> wrote:
> From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
>
> In many of the error handling case, the return value 'ret' not set
> and 0 will be return from d40_probe() even if error, but we should
> return a negative error code instead in those error handling case.
> This patch fixed them, and also removed useless variable 'err'.
>
> Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
> ---
>  drivers/dma/ste_dma40.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
> index 71bf4ec..cbf9c62 100644
> --- a/drivers/dma/ste_dma40.c
> +++ b/drivers/dma/ste_dma40.c
> @@ -3474,7 +3474,6 @@ failure:
>
>  static int __init d40_probe(struct platform_device *pdev)
>  {
> -       int err;
>         int ret = -ENOENT;
>         struct d40_base *base;
>         struct resource *res = NULL;
> @@ -3576,6 +3575,7 @@ static int __init d40_probe(struct platform_device *pdev)
>                 if (IS_ERR(base->lcpa_regulator)) {
>                         d40_err(&pdev->dev, "Failed to get lcpa_regulator\n");
>                         base->lcpa_regulator = NULL;
> +                       ret = PTR_ERR(base->lcpa_regulator);
>                         goto failure;
>                 }
>
> @@ -3590,13 +3590,13 @@ static int __init d40_probe(struct platform_device *pdev)
>         }
>
>         base->initialized = true;
> -       err = d40_dmaengine_init(base, num_reserved_chans);
> -       if (err)
> +       ret = d40_dmaengine_init(base, num_reserved_chans);
> +       if (ret)
>                 goto failure;
>
>         base->dev->dma_parms = &base->dma_parms;
> -       err = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE);
> -       if (err) {
> +       ret = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE);
> +       if (ret) {
>                 d40_err(&pdev->dev, "Failed to set dma max seg size\n");
>                 goto failure;
>         }
>
> --
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-- 
With Best Regards,
Andy Shevchenko
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