linux-kernel - Re: [PATCH] extcon-max8997: remove usage of ret in max8997_muic_handle_charger_type

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Message-ID: <CA+C2MxQkSF8oOWgRENSJ_UeQUJuwXo8_JHNhokpizVqHtFrSEg@mail.gmail.com>
Date:	Fri, 31 Aug 2012 14:00:19 +0530
From:	Devendra Naga <develkernel412222@...il.com>
To:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	linux-kernel@...r.kernel.org
Cc:	Devendra Naga <develkernel412222@...il.com>
Subject: Re: [PATCH] extcon-max8997: remove usage of ret in max8997_muic_handle_charger_type_detach

any comments ?

On Wed, Aug 15, 2012 at 12:19 PM, Devendra Naga
<develkernel412222@...il.com> wrote:
> actually we can do returns with error or success with out ret in this function,
> so remove the ret variable, and reduce a very little (4byte) space on stack of this function
>
> Signed-off-by: Devendra Naga <develkernel412222@...il.com>
> ---
>  compile tested.
>
>  drivers/extcon/extcon-max8997.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
> index ef9090a..77b66b0 100644
> --- a/drivers/extcon/extcon-max8997.c
> +++ b/drivers/extcon/extcon-max8997.c
> @@ -271,8 +271,6 @@ out:
>  static int max8997_muic_handle_charger_type_detach(
>                                 struct max8997_muic_info *info)
>  {
> -       int ret = 0;
> -
>         switch (info->pre_charger_type) {
>         case MAX8997_CHARGER_TYPE_USB:
>                 extcon_set_cable_state(info->edev, "USB", false);
> @@ -290,11 +288,11 @@ static int max8997_muic_handle_charger_type_detach(
>                 extcon_set_cable_state(info->edev, "Fast-charger", false);
>                 break;
>         default:
> -               ret = -EINVAL;
> +               return -EINVAL;
>                 break;
>         }
>
> -       return ret;
> +       return 0;
>  }
>
>  static int max8997_muic_handle_charger_type(struct max8997_muic_info *info,
> --
> 1.7.12.rc2
>
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