linux-kernel - Re: [PATCH] media: ipu3-cio2: Fix missing error code in cio2_bridge_connect

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Date:   Fri, 15 Oct 2021 11:16:38 +0100
From:   Daniel Scally <djrscally@...il.com>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>, yong.zhi@...el.com
Cc:     sakari.ailus@...ux.intel.com, bingbu.cao@...el.com,
        tian.shu.qiu@...el.com, mchehab@...nel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: ipu3-cio2: Fix missing error code in
 cio2_bridge_connect_sensor()

Hi Jiapeng - thanks for the patch

On 15/10/2021 11:09, Jiapeng Chong wrote:
> The error code is missing in this code scenario, add the error code
> '-EINVAL' to the return value 'ret'.
>
> Eliminate the follow smatch warning:
>
> drivers/media/pci/intel/ipu3/cio2-bridge.c:242 cio2_bridge_connect_sensor()
> warn: missing error code 'ret'
>
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Fixes: 803abec64ef9 ("media: ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver")
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> ---
>  drivers/media/pci/intel/ipu3/cio2-bridge.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> index 67c467d3..9e364ba 100644
> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> @@ -238,8 +238,10 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>  			goto err_put_adev;
>  
>  		status = acpi_get_physical_device_location(adev->handle, &sensor->pld);
> -		if (ACPI_FAILURE(status))
> +		if (ACPI_FAILURE(status)) {
> +			ret = -EINVAL;
>  			goto err_put_adev;
> +		}
>  
>  		if (sensor->ssdb.lanes > CIO2_MAX_LANES) {
>  			dev_err(&adev->dev,


This was actually just patched already:
https://lore.kernel.org/linux-media/163421191963.3878617.4945041938867839263@Monstersaurus/T/#m3dfd290de36ae21e6de90d4c297ba27bb0647611