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Date:   Mon, 30 Nov 2020 19:30:07 +0200
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Daniel Scally <djrscally@gmail.com>
Cc:     linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
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Subject: Re: [PATCH 03/18] software_node: Fix failure to put() and get()
 references to children in software_node_get_next_child()
Message-ID: <20201130173007.GN4077@smile.fi.intel.com>
References: <20201130133129.1024662-1-djrscally@gmail.com>
 <20201130133129.1024662-4-djrscally@gmail.com>
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Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
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On Mon, Nov 30, 2020 at 01:31:14PM +0000, Daniel Scally wrote:
> The software_node_get_next_child() function currently does not hold
> references to the child software_node that it finds or put the ref that
> is held against the old child - fix that.

Fixes tag and make it first in the series?
In any case,

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

> Signed-off-by: Daniel Scally <djrscally@gmail.com>
> ---
> Changes since RFC v3:
> 
> 	Put reference to previous child.
> 
>  drivers/base/swnode.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
> index 010828fc785b..615a0c93e116 100644
> --- a/drivers/base/swnode.c
> +++ b/drivers/base/swnode.c
> @@ -443,14 +443,18 @@ software_node_get_next_child(const struct fwnode_handle *fwnode,
>  	struct swnode *c = to_swnode(child);
>  
>  	if (!p || list_empty(&p->children) ||
> -	    (c && list_is_last(&c->entry, &p->children)))
> +	    (c && list_is_last(&c->entry, &p->children))) {
> +		fwnode_handle_put(child);
>  		return NULL;
> +	}
>  
>  	if (c)
>  		c = list_next_entry(c, entry);
>  	else
>  		c = list_first_entry(&p->children, struct swnode, entry);
> -	return &c->fwnode;
> +
> +	fwnode_handle_put(child);
> +	return fwnode_handle_get(&c->fwnode);
>  }
>  
>  static struct fwnode_handle *
> -- 
> 2.25.1
> 

-- 
With Best Regards,
Andy Shevchenko