On 15/08/17 18:45, Masahiro Yamada wrote:
> The difference between sdhci_pxav2_remove() and sdhci_pltfm_unregister()
> is clk_put().  It will go away by using the managed resource clk, then
> sdhci_pltfm_unregister() can be reused.
> 
> Also, rename the jump labels to say what the goto does. (Coding style
> suggested by Documentation/process/coding-style.rst)
> 
> Signed-off-by: Masahiro Yamada <[email protected]>

Cc'ing Jisheng Zhang, but looks ok to me.

Acked-by: Adrian Hunter <[email protected]>

> ---
> 
> Changes in v3:
>   - Newly added
> 
> Changes in v2: None
> 
>  drivers/mmc/host/sdhci-pxav2.c | 30 +++++++-----------------------
>  1 file changed, 7 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
> index 995083ce1c46..8986f9d9cf98 100644
> --- a/drivers/mmc/host/sdhci-pxav2.c
> +++ b/drivers/mmc/host/sdhci-pxav2.c
> @@ -178,17 +178,17 @@ static int sdhci_pxav2_probe(struct platform_device 
> *pdev)
>  
>       pltfm_host = sdhci_priv(host);
>  
> -     clk = clk_get(dev, "PXA-SDHCLK");
> +     clk = devm_clk_get(dev, "PXA-SDHCLK");
>       if (IS_ERR(clk)) {
>               dev_err(dev, "failed to get io clock\n");
>               ret = PTR_ERR(clk);
> -             goto err_clk_get;
> +             goto free;
>       }
>       pltfm_host->clk = clk;
>       ret = clk_prepare_enable(clk);
>       if (ret) {
>               dev_err(&pdev->dev, "failed to enable io clock\n");
> -             goto err_clk_enable;
> +             goto free;
>       }
>  
>       host->quirks = SDHCI_QUIRK_BROKEN_ADMA
> @@ -223,34 +223,18 @@ static int sdhci_pxav2_probe(struct platform_device 
> *pdev)
>       ret = sdhci_add_host(host);
>       if (ret) {
>               dev_err(&pdev->dev, "failed to add host\n");
> -             goto err_add_host;
> +             goto disable_clk;
>       }
>  
>       return 0;
>  
> -err_add_host:
> +disable_clk:
>       clk_disable_unprepare(clk);
> -err_clk_enable:
> -     clk_put(clk);
> -err_clk_get:
> +free:
>       sdhci_pltfm_free(pdev);
>       return ret;
>  }
>  
> -static int sdhci_pxav2_remove(struct platform_device *pdev)
> -{
> -     struct sdhci_host *host = platform_get_drvdata(pdev);
> -     struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> -
> -     sdhci_remove_host(host, 1);
> -
> -     clk_disable_unprepare(pltfm_host->clk);
> -     clk_put(pltfm_host->clk);
> -     sdhci_pltfm_free(pdev);
> -
> -     return 0;
> -}
> -
>  static struct platform_driver sdhci_pxav2_driver = {
>       .driver         = {
>               .name   = "sdhci-pxav2",
> @@ -258,7 +242,7 @@ static struct platform_driver sdhci_pxav2_driver = {
>               .pm     = &sdhci_pltfm_pmops,
>       },
>       .probe          = sdhci_pxav2_probe,
> -     .remove         = sdhci_pxav2_remove,
> +     .remove         = sdhci_pltfm_unregister,
>  };
>  
>  module_platform_driver(sdhci_pxav2_driver);
> 

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