On 08/01/2018 10:56 AM, Arun Parameswaran wrote:
> Use devm_mdiobus_alloc() instead of mdiobus_alloc() in the Broadcom
> iProc mdio mux driver.
> 
> Also, clear the driver data on error from probe or when remove() is
> called.
> 
> Signed-off-by: Arun Parameswaran <[email protected]>
> ---
>  drivers/net/phy/mdio-mux-bcm-iproc.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c 
> b/drivers/net/phy/mdio-mux-bcm-iproc.c
> index c36ce4b..5640d78 100644
> --- a/drivers/net/phy/mdio-mux-bcm-iproc.c
> +++ b/drivers/net/phy/mdio-mux-bcm-iproc.c
> @@ -198,7 +198,7 @@ static int mdio_mux_iproc_probe(struct platform_device 
> *pdev)
>               return PTR_ERR(md->base);
>       }
>  
> -     md->mii_bus = mdiobus_alloc();
> +     md->mii_bus = devm_mdiobus_alloc(&pdev->dev);
>       if (!md->mii_bus) {
>               dev_err(&pdev->dev, "mdiomux bus alloc failed\n");
>               return -ENOMEM;
> @@ -217,7 +217,7 @@ static int mdio_mux_iproc_probe(struct platform_device 
> *pdev)
>       rc = mdiobus_register(bus);
>       if (rc) {
>               dev_err(&pdev->dev, "mdiomux registration failed\n");
> -             goto out;
> +             return rc;
>       }
>  
>       platform_set_drvdata(pdev, md);
> @@ -226,6 +226,7 @@ static int mdio_mux_iproc_probe(struct platform_device 
> *pdev)
>                          &md->mux_handle, md, md->mii_bus);
>       if (rc) {
>               dev_info(md->dev, "mdiomux initialization failed\n");
> +             platform_set_drvdata(pdev, NULL);

This is minor, but I don't think this is necessary, the core device
driver layer does that already.

>               goto out_register;
>       }
>  
> @@ -236,8 +237,6 @@ static int mdio_mux_iproc_probe(struct platform_device 
> *pdev)
>  
>  out_register:
>       mdiobus_unregister(bus);
> -out:
> -     mdiobus_free(bus);
>       return rc;
>  }
>  
> @@ -247,7 +246,7 @@ static int mdio_mux_iproc_remove(struct platform_device 
> *pdev)
>  
>       mdio_mux_uninit(md->mux_handle);
>       mdiobus_unregister(md->mii_bus);
> -     mdiobus_free(md->mii_bus);
> +     platform_set_drvdata(pdev, NULL);

Likewise.

>  
>       return 0;
>  }
> 


-- 
Florian

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