Re: [PATCH] max9286: balance v4l2_async refcnting

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On 13/02/2020 10:21, Kieran Bingham wrote:
> When we add fwnodes to V4L2 notifiers through
> v4l2_async_notifier_add_subdev they are stored internally in V4L2 core,
> and have a reference count released upon any call to
> v4l2_async_notifier_cleanup().
> 
> Ensure that any source successfully added to a notifier gets its fwnode
> reference count increased accordingly.
> 
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> ---
>  drivers/media/i2c/max9286.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
> index f3311210a666..62615e6ab710 100644
> --- a/drivers/media/i2c/max9286.c
> +++ b/drivers/media/i2c/max9286.c
> @@ -665,6 +665,11 @@ static int max9286_v4l2_async_register(struct max9286_priv *priv)
>  			v4l2_async_notifier_cleanup(&priv->notifier);
>  			return ret;
>  		}
> +
> +		/* Balance the refernce counting handled through

I've correctly moved this to a new line and fixed up the reference
spelling :)

> +		 * v4l2_async_notifier_cleanup()
> +		 */
> +		fwnode_handle_get(source->fwnode);
>  	}
>  
>  	priv->notifier.ops = &max9286_notify_ops;
> 




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