Re: [PATCH] leds: netxbig: Fix platform device reference leak on successful probe

From: Lee Jones

Date: Tue Sep 22 2026 - 12:28:24 EST


On Thu, 17 Sep 2026, Wentao Liang wrote:

> of_find_device_by_node() returns the GPIO extension device with an
> elevated reference count. The error paths release it through the
> put_device label, but the success path returns directly, so the
> reference is leaked whenever the LED driver probes successfully.
>
> Let the success path fall through to the put_device label.
>
> Fixes: 9af512e81964 ("leds: netxbig: Convert to use GPIO descriptors")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Wentao Liang <vulab@xxxxxxxxxxx>
> ---
> drivers/leds/leds-netxbig.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
> index 99df46f2d9f5..d79fee1d9143 100644
> --- a/drivers/leds/leds-netxbig.c
> +++ b/drivers/leds/leds-netxbig.c
> @@ -597,8 +597,7 @@ static int netxbig_leds_get_of_pdata(struct device *dev,
> pdata->leds = leds;
> pdata->num_leds = num_leds;
>
> - return 0;
> -
> + ret = 0;
> put_device:
> put_device(gpio_ext_dev);
> return ret;

Or you could do a nicer clean-up by putting it after last use, then
remove all of the gotos?

--
Lee Jones