From: Andy Shevchenko andy.shevchenko@gmail.com
[ Upstream commit 76b7f8fae30a9249f820e019f1e62eca992751a2 ]
device_for_each_child_node() bumps a reference counting of a returned variable. We have to balance it whenever we return to the caller.
Fixes: 7e5ea974e61c ("pinctrl: pinctrl-microchip-sgpio: Add pinctrl driver for Microsemi Serial GPIO") Cc: Lars Povlsen lars.povlsen@microchip.com Signed-off-by: Andy Shevchenko andy.shevchenko@gmail.com Link: https://lore.kernel.org/r/20210606191940.29312-1-andy.shevchenko@gmail.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/pinctrl-microchip-sgpio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c index c12fa57ebd12..165cb7a59715 100644 --- a/drivers/pinctrl/pinctrl-microchip-sgpio.c +++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c @@ -845,8 +845,10 @@ static int microchip_sgpio_probe(struct platform_device *pdev) i = 0; device_for_each_child_node(dev, fwnode) { ret = microchip_sgpio_register_bank(dev, priv, fwnode, i++); - if (ret) + if (ret) { + fwnode_handle_put(fwnode); return ret; + } }
if (priv->in.gpio.ngpio != priv->out.gpio.ngpio) {