Hi Fabio,

On Fri, Apr 25, 2014 at 11:38:28AM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <[email protected]>
> 
> Using devm_regulator_bulk_get() and devm_input_allocate_device() can make the
> code cleaner and smaller as we do not need to call regulator_bulk_free() in 
> the
> error and remove paths.
> 
> Signed-off-by: Fabio Estevam <[email protected]>
> ---
> Changes since v1:
> - Also use devm_input_allocate_device()
> 
>  drivers/input/misc/twl6040-vibra.c | 21 ++++++++-------------
>  1 file changed, 8 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/input/misc/twl6040-vibra.c 
> b/drivers/input/misc/twl6040-vibra.c
> index 77dc23b..76aa602 100644
> --- a/drivers/input/misc/twl6040-vibra.c
> +++ b/drivers/input/misc/twl6040-vibra.c
> @@ -323,8 +323,9 @@ static int twl6040_vibra_probe(struct platform_device 
> *pdev)
>        * When booted with Device tree the regulators are attached to the
>        * parent device (twl6040 MFD core)
>        */
> -     ret = regulator_bulk_get(twl6040_core_dev, ARRAY_SIZE(info->supplies),
> -                              info->supplies);
> +     ret = devm_regulator_bulk_get(twl6040_core_dev,
> +                                   ARRAY_SIZE(info->supplies),
> +                                   info->supplies);
>       if (ret) {
>               dev_err(info->dev, "couldn't get regulators %d\n", ret);
>               return ret;
> @@ -336,7 +337,7 @@ static int twl6040_vibra_probe(struct platform_device 
> *pdev)
>               if (ret) {
>                       dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
>                               ret);
> -                     goto err_regulator;
> +                     return ret;
>               }
>       }
>  
> @@ -346,17 +347,16 @@ static int twl6040_vibra_probe(struct platform_device 
> *pdev)
>               if (ret) {
>                       dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
>                               ret);
> -                     goto err_regulator;
> +                     return ret;
>               }
>       }
>  
>       INIT_WORK(&info->play_work, vibra_play_work);
>  
> -     info->input_dev = input_allocate_device();
> +     info->input_dev = devm_input_allocate_device(&pdev->dev);
>       if (info->input_dev == NULL) {
>               dev_err(info->dev, "couldn't allocate input device\n");
> -             ret = -ENOMEM;
> -             goto err_regulator;
> +             return -ENOMEM;
>       }
>  
>       input_set_drvdata(info->input_dev, info);
> @@ -370,7 +370,7 @@ static int twl6040_vibra_probe(struct platform_device 
> *pdev)
>       ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
>       if (ret < 0) {
>               dev_err(info->dev, "couldn't register vibrator to FF\n");
> -             goto err_ialloc;
> +             return ret;
>       }
>  
>       ret = input_register_device(info->input_dev);
> @@ -385,10 +385,6 @@ static int twl6040_vibra_probe(struct platform_device 
> *pdev)
>  
>  err_iff:
>       input_ff_destroy(info->input_dev);

This is not strictly needed (input_dev_release will clean it up
automatically).

> -err_ialloc:
> -     input_free_device(info->input_dev);
> -err_regulator:
> -     regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
>       return ret;
>  }
>  
> @@ -397,7 +393,6 @@ static int twl6040_vibra_remove(struct platform_device 
> *pdev)
>       struct vibra_info *info = platform_get_drvdata(pdev);
>  
>       input_unregister_device(info->input_dev);

You do not need to call input_unregister_device() for managed input
devices.

I edited the patch a bit and applied it.

Thanks.

-- 
Dmitry
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