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Date:   Fri, 21 Apr 2023 09:38:21 +0200
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From:   Matthias Schwarzott <zzam@gentoo.org>
Subject: Re: [PATCH] media: ov5693: Simplify an error message
To:     Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
        Daniel Scally <djrscally@gmail.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>
Cc:     linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
        linux-media@vger.kernel.org
References: <928f2f70de241d0fa66801b46d736ad0f881eb72.1681576102.git.christophe.jaillet@wanadoo.fr>
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Am 15.04.23 um 18:28 schrieb Christophe JAILLET:
> dev_err_probe() already display the error code. There is no need to
> duplicate it explicitly in the error message.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>   drivers/media/i2c/ov5693.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c
> index e3c3bed69ad6..d23786afd754 100644
> --- a/drivers/media/i2c/ov5693.c
> +++ b/drivers/media/i2c/ov5693.c
> @@ -404,8 +404,8 @@ static int ov5693_read_reg(struct ov5693_device *ov5693, u32 addr, u32 *value)
>   	ret = i2c_transfer(client->adapter, msg, 2);
>   	if (ret < 0)

i2c_transfer returns the number of transmitted messages. So I think the 
values 0 <= ret < 2 also need to be handled.

>   		return dev_err_probe(&client->dev, ret,
> -				     "Failed to read register 0x%04x: %d\n",
> -				     addr & OV5693_REG_ADDR_MASK, ret);
> +				     "Failed to read register 0x%04x\n",
> +				     addr & OV5693_REG_ADDR_MASK);
>   
>   	*value = 0;
>   	for (i = 0; i < len; ++i) {