From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
commit 6fbbcb050802d6ea109f387e961b1dbcc3a80c96 upstream.
In s3c24xx_eint_init() the for_each_child_of_node() loop is used with a
break to find a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: af99a7507469 ("pinctrl: Add pinctrl-s3c24xx driver")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/samsung/pinctrl-s3c24xx.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -495,8 +495,10 @@ static int s3c24xx_eint_init(struct sams
return -ENODEV;
eint_data = devm_kzalloc(dev, sizeof(*eint_data), GFP_KERNEL);
- if (!eint_data)
+ if (!eint_data) {
+ of_node_put(eint_np);
return -ENOMEM;
+ }
eint_data->drvdata = d;
@@ -508,12 +510,14 @@ static int s3c24xx_eint_init(struct sams
irq = irq_of_parse_and_map(eint_np, i);
if (!irq) {
dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
+ of_node_put(eint_np);
return -ENXIO;
}
eint_data->parents[i] = irq;
irq_set_chained_handler_and_data(irq, handlers[i], eint_data);
}
+ of_node_put(eint_np);
bank = d->pin_banks;
for (i = 0; i < d->nr_banks; ++i, ++bank) {
