linux-kernel - Re: [PATCH 1/3] mfd: arizona: Remove duplicate set of ret variable

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Date:   Thu, 5 Jan 2017 08:07:37 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:     patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] mfd: arizona: Remove duplicate set of ret variable

On Wed, 04 Jan 2017, Charles Keepax wrote:

> arizona_poll_reg already returns ETIMEDOUT if we don't see the expected
> register changes before the time out, so remove pointless local setting of
> ETIMEDOUT.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/arizona-core.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
  
> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
> index b6d4bc6..e00f577 100644
> --- a/drivers/mfd/arizona-core.c
> +++ b/drivers/mfd/arizona-core.c
> @@ -342,10 +342,8 @@ static int arizona_enable_freerun_sysclk(struct arizona *arizona,
>  	ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
>  			       ARIZONA_FLL1_CLOCK_OK_STS,
>  			       ARIZONA_FLL1_CLOCK_OK_STS);
> -	if (ret) {
> -		ret = -ETIMEDOUT;
> +	if (ret)
>  		goto err_fll;
> -	}
>  
>  	ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
>  	if (ret) {
> @@ -407,11 +405,9 @@ static int wm5102_apply_hardware_patch(struct arizona *arizona)
>  
>  	ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
>  			       ARIZONA_WSEQ_BUSY, 0);
> -	if (ret) {
> +	if (ret)
>  		regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
>  			     ARIZONA_WSEQ_ABORT);
> -		ret = -ETIMEDOUT;
> -	}
>  
>  err:
>  	err = arizona_disable_freerun_sysclk(arizona, &state);

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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