linux-kernel - Re: [PATCH][next] media: i2c: ds90ub960: Fix missing return check on ub960_rxport

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Message-ID: <Zv40EQSR__JDN_0M@kekkonen.localdomain>
Date: Thu, 3 Oct 2024 06:05:05 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Colin Ian King <colin.i.king@...il.com>
Cc: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-media@...r.kernel.org, kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] media: i2c: ds90ub960: Fix missing return check on
 ub960_rxport_read call

Hi Colin,

On Wed, Oct 02, 2024 at 05:53:29PM +0100, Colin Ian King wrote:
> The function ub960_rxport_read is being called and afterwards ret is
> being checked for any failures, however ret is not being assigned to
> the return of the function call. Fix this by assigning ret to the
> return of the call which appears to be missing.
> 
> Fixes: afe267f2d368 ("media: i2c: add DS90UB960 driver")
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>
> ---
>  drivers/media/i2c/ds90ub960.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c
> index ffe5f25f8647..58424d8f72af 100644
> --- a/drivers/media/i2c/ds90ub960.c
> +++ b/drivers/media/i2c/ds90ub960.c
> @@ -1286,7 +1286,7 @@ static int ub960_rxport_get_strobe_pos(struct ub960_data *priv,
>  
>  	clk_delay += v & UB960_IR_RX_ANA_STROBE_SET_CLK_DELAY_MASK;
>  
> -	ub960_rxport_read(priv, nport, UB960_RR_SFILTER_STS_1, &v);
> +	ret = ub960_rxport_read(priv, nport, UB960_RR_SFILTER_STS_1, &v);
>  	if (ret)
>  		return ret;
>  

There seems to be a similar issues all around the driver. It'd be good to
fix them at the same time.

-- 
Kind regards,

Sakari Ailus