2020-09-25 23:29:18

by Tobias Jordan

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Subject: [PATCH] leds: aw2013: fix leak of device node iterator

In the error path of the for_each_available_child_of_node loop in
aw2013_probe_dt, add missing call to of_node_put to avoid leaking the
iterator.

Fixes: 59ea3c9faf32 ("leds: add aw2013 driver")
Signed-off-by: Tobias Jordan <[email protected]>
---
drivers/leds/leds-aw2013.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c
index d709cc1f949e..8687ffa57a28 100644
--- a/drivers/leds/leds-aw2013.c
+++ b/drivers/leds/leds-aw2013.c
@@ -305,8 +305,10 @@ static int aw2013_probe_dt(struct aw2013 *chip)

ret = devm_led_classdev_register_ext(&chip->client->dev,
&led->cdev, &init_data);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(child);
return ret;
+ }

i++;
}
--
2.20.1


2020-09-30 17:12:04

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH] leds: aw2013: fix leak of device node iterator

Hi!

> In the error path of the for_each_available_child_of_node loop in
> aw2013_probe_dt, add missing call to of_node_put to avoid leaking the
> iterator.
>
> Fixes: 59ea3c9faf32 ("leds: add aw2013 driver")
> Signed-off-by: Tobias Jordan <[email protected]>

This failed to apply to my -for-next tree.

Best regards,
Pavel


--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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2020-09-30 20:53:25

by Tobias Jordan

[permalink] [raw]
Subject: Re: [PATCH] leds: aw2013: fix leak of device node iterator

On 2020-09-30 19:10, Pavel Machek wrote:
Hi Pavel,

> > In the error path of the for_each_available_child_of_node loop in
> > aw2013_probe_dt, add missing call to of_node_put to avoid leaking
> > the iterator.
> >
> > Fixes: 59ea3c9faf32 ("leds: add aw2013 driver")
> > Signed-off-by: Tobias Jordan <[email protected]>
>
> This failed to apply to my -for-next tree.

Yes, it turns out this had been fixed by Marek already one day
before I submitted my patch (in commit 2c6775625434) and I didn't
notice that. So nothing to do there, sorry for the inconvenience.

Best regards,

Tobias