Re: [PATCH -next 8/8] soc: ti: knav_qmss_queue: Simplify with scoped for each OF child loop

[Kousik Sanagavarapu <five231003@xxxxxxxxx>]

Jinjie Ruan <ruanjinjie@xxxxxxxxxx> writes:
> @@ -1080,17 +1080,13 @@ static int knav_queue_setup_regions(struct knav_device *kdev,
>  {
>  	struct device *dev = kdev->dev;
>  	struct knav_region *region;
> -	struct device_node *child;
>  	u32 temp[2];
>  	int ret;
>  
> -	for_each_child_of_node(regions, child) {
> +	for_each_child_of_node_scoped(regions, child) {

Are you sure using *_scoped() is better here?  Since it seems that we
need the memory pointed to by "child" in cases where we don't go into an
error path.

>  		region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);
> -		if (!region) {
> -			of_node_put(child);
> -			dev_err(dev, "out of memory allocating region\n");
> -			return -ENOMEM;
> -		}
> +		if (!region)
> +			return dev_err_probe(dev, -ENOMEM, "out of memory allocating region\n");
>  
>  		region->name = knav_queue_find_name(child);
>  		of_property_read_u32(child, "id", &region->id);

Similarly in most of the other cases in this series where a similar
change is done.

Also FYI, as for dev_err_probe(), I think I covered all of them in this
file and a patch for it is currently sitting in ti-drivers-soc-next.

Thanks