On Mon, May 10, 2021 at 01:01:36PM +0300, Andy Shevchenko wrote:
> In each iteration fwnode_for_each_available_child_node() bumps a reference
> counting of a loop variable followed by dropping in on a next iteration,
>
> Since in error case the loop is broken, we have to drop a reference count
> by ourselves. Do it for port_fwnode in error case during ->probe().
>
> Fixes: b0bd407e94b0 ("hwmon: (ltc2992) Add support")
> Cc: Alexandru Tachici <alexandru.tachici@xxxxxxxxxx>
> Signed-off-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Applied.
Thanks,
Guenter
> ---
> drivers/hwmon/ltc2992.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c
> index 4382105bf142..2a4bed0ab226 100644
> --- a/drivers/hwmon/ltc2992.c
> +++ b/drivers/hwmon/ltc2992.c
> @@ -900,11 +900,15 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
>
> fwnode_for_each_available_child_node(fwnode, child) {
> ret = fwnode_property_read_u32(child, "reg", &addr);
> - if (ret < 0)
> + if (ret < 0) {
> + fwnode_handle_put(child);
> return ret;
> + }
>
> - if (addr > 1)
> + if (addr > 1) {
> + fwnode_handle_put(child);
> return -EINVAL;
> + }
>
> ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val);
> if (!ret)
