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| author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-08-05 19:27:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 22:39:38 +0300 |
| commit | a5958149d5eaac72e78304a7e3d501eb59b4ee7f (patch) | |
| tree | d7aec1476db2cca85c270ab3843405ba76f0e7e1 /drivers/pinctrl/samsung | |
| parent | d892c97851235087932113d7fefd818484ceba5a (diff) | |
| download | linux-a5958149d5eaac72e78304a7e3d501eb59b4ee7f.tar.xz | |
pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init
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@vger.kernel.org>
Fixes: af99a7507469 ("pinctrl: Add pinctrl-s3c24xx driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pinctrl/samsung')
| -rw-r--r-- | drivers/pinctrl/samsung/pinctrl-s3c24xx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c index 67da1cf18b68..46b1a9b2238b 100644 --- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c +++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c @@ -495,8 +495,10 @@ static int s3c24xx_eint_init(struct samsung_pinctrl_drv_data *d) 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 samsung_pinctrl_drv_data *d) 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) { |