Re: [PATCH] pinctrl: stm32: add missing of_node_put

[foss <fabien.dessenne@xxxxxxxxxxx>]

Resending in plain-text format.


On 15/02/2021 2:26 pm, foss wrote:
> Hi Junlin
>
>
> Thank you for the patch!
>
>
> Fabien
>
>
> > From: Junlin Yang<yangjunlin@xxxxxxxxxx>
> >
> > Fix OF node leaks by calling of_node_put in for_each_available_child_of_node when the cycle returns.
> >
> > Generated by: scripts/coccinelle/iterators/for_each_child.cocci
> >
> > Signed-off-by: Junlin Yang<yangjunlin@xxxxxxxxxx>
>
> Acked-by: Fabien Dessenne <fabien.dessenne@xxxxxxxxxxx>
>
>
> > ---
> >   drivers/pinctrl/stm32/pinctrl-stm32.c | 5 ++++-
> >   1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
> > index 7d9bded..da72e3e 100644
> > --- a/drivers/pinctrl/stm32/pinctrl-stm32.c
> > +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
> > @@ -1542,8 +1542,10 @@ int stm32_pctl_probe(struct platform_device *pdev)
> >   		if (of_property_read_bool(child, "gpio-controller")) {
> >   			bank->rstc = of_reset_control_get_exclusive(child,
> >   								    NULL);
> > -			if (PTR_ERR(bank->rstc) == -EPROBE_DEFER)
> > +			if (PTR_ERR(bank->rstc) == -EPROBE_DEFER) {
> > +				of_node_put(child);
> >   				return -EPROBE_DEFER;
> > +			}
> >   
> >   			bank->clk = of_clk_get_by_name(child, NULL);
> >   			if (IS_ERR(bank->clk)) {
> > @@ -1551,6 +1553,7 @@ int stm32_pctl_probe(struct platform_device *pdev)
> >   					dev_err(dev,
> >   						"failed to get clk (%ld)\n",
> >   						PTR_ERR(bank->clk));
> > +				of_node_put(child);
> >   				return PTR_ERR(bank->clk);
> >   			}
> >   			i++;
> > --
> > 1.9.1