Re: [PATCH 1/3] media: i2c: ov5640: Drop manual fwnode_handle_put() via scope-based cleanup

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Hi Biren,

On Tue, Jun 16, 2026 at 04:00:53AM +0530, Biren Pandya wrote:
> Utilize the __free(fwnode_handle) scoped guard macro from <linux/cleanup.h> to automate the lifecycle management of the endpoint fwnode in ov5640_probe().
> 
> This eliminates the need for the manual fwnode_handle_put() call, preventing potential memory leaks in error paths and simplifying the probe routine.

Please wrap to 75 characters per line.

> 
> Signed-off-by: Biren Pandya <birenpandya@gmail.com>
> ---
>  drivers/media/i2c/ov5640.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> index ce6b0724afa1..7795f2de0f75 100644
> --- a/drivers/media/i2c/ov5640.c
> +++ b/drivers/media/i2c/ov5640.c
> @@ -4,6 +4,7 @@
>   * Copyright (C) 2014-2017 Mentor Graphics Inc.
>   */
>  
> +#include <linux/cleanup.h>
>  #include <linux/clk.h>
>  #include <linux/clk-provider.h>
>  #include <linux/clkdev.h>
> @@ -3845,7 +3846,6 @@ static int ov5640_check_chip_id(struct ov5640_dev *sensor)
>  static int ov5640_probe(struct i2c_client *client)
>  {
>  	struct device *dev = &client->dev;
> -	struct fwnode_handle *endpoint;
>  	struct ov5640_dev *sensor;
>  	int ret;
>  
> @@ -3870,15 +3870,14 @@ static int ov5640_probe(struct i2c_client *client)
>  
>  	sensor->ae_target = 52;
>  
> -	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
> -						  NULL);
> +	struct fwnode_handle *endpoint __free(fwnode_handle) =
> +		fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL);

I'm fine with using __free() here.

>  	if (!endpoint) {
>  		dev_err(dev, "endpoint node not found\n");
>  		return -EINVAL;
>  	}

This check can be removed in the same patch. It's now redundant as
v4l2_fwnode_endpoint_parse() also does it.

>  
>  	ret = v4l2_fwnode_endpoint_parse(endpoint, &sensor->ep);
> -	fwnode_handle_put(endpoint);
>  	if (ret) {
>  		dev_err(dev, "Could not parse endpoint\n");
>  		return ret;

-- 
Regards,

Sakari Ailus