linux-kernel - Re: [PATCH] staging: atomisp: clean up return logic, remove redunant code

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Date:   Sun, 12 Mar 2017 15:56:53 +0100
From:   walter harms <wharms@....de>
To:     Colin King <colin.king@...onical.com>
CC:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Cox <alan@...ux.intel.com>, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: atomisp: clean up return logic, remove redunant
 code



Am 11.03.2017 20:32, schrieb Colin King:
> From: Colin Ian King <colin.king@...onical.com>
> 
> There is no need to check if ret is non-zero, remove this
> redundant check and just return the error status from the call
> to mt9m114_write_reg_array.
> 
> Detected by CoverityScan, CID#1416577 ("Identical code for
> different branches")
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/staging/media/atomisp/i2c/mt9m114.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/media/atomisp/i2c/mt9m114.c b/drivers/staging/media/atomisp/i2c/mt9m114.c
> index 8762124..a555aec 100644
> --- a/drivers/staging/media/atomisp/i2c/mt9m114.c
> +++ b/drivers/staging/media/atomisp/i2c/mt9m114.c
> @@ -444,12 +444,8 @@ static int mt9m114_set_suspend(struct v4l2_subdev *sd)
>  static int mt9m114_init_common(struct v4l2_subdev *sd)
>  {
>  	struct i2c_client *client = v4l2_get_subdevdata(sd);
> -	int ret;
>  
> -	ret = mt9m114_write_reg_array(client, mt9m114_common, PRE_POLLING);
> -	if (ret)
> -		return ret;
> -	return ret;
> +	return mt9m114_write_reg_array(client, mt9m114_common, PRE_POLLING);
>  }


any use for "client" ?

re,
 wh

>  
>  static int power_ctrl(struct v4l2_subdev *sd, bool flag)