2020-11-19 07:07:02

by Qinglang Miao

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Subject: [PATCH v2] leds: lp50xx: add missing fwnode_handle_put in error handling case

Fix to set ret and goto child_out for fwnode_handle_put(child)
in the error handling case rather than simply return, as done
elsewhere in this function.

Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
Reported-by: Hulk Robot <[email protected]>
Suggested-by: Pavel Machek <[email protected]>
Signed-off-by: Qinglang Miao <[email protected]>
---
v2: forget to set ret on v1

drivers/leds/leds-lp50xx.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c
index 5fb4f24ae..f13117eed 100644
--- a/drivers/leds/leds-lp50xx.c
+++ b/drivers/leds/leds-lp50xx.c
@@ -487,8 +487,10 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
*/
mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE,
sizeof(*mc_led_info), GFP_KERNEL);
- if (!mc_led_info)
- return -ENOMEM;
+ if (!mc_led_info) {
+ ret = -ENOMEM;
+ goto child_out;
+ }

fwnode_for_each_child_node(child, led_node) {
ret = fwnode_property_read_u32(led_node, "color",
--
2.23.0


2020-11-19 21:13:57

by Dan Murphy

[permalink] [raw]
Subject: Re: [PATCH v2] leds: lp50xx: add missing fwnode_handle_put in error handling case

Hello

On 11/19/20 1:08 AM, Qinglang Miao wrote:
> Fix to set ret and goto child_out for fwnode_handle_put(child)
> in the error handling case rather than simply return, as done
> elsewhere in this function.
>
> Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
> Reported-by: Hulk Robot <[email protected]>
> Suggested-by: Pavel Machek <[email protected]>
> Signed-off-by: Qinglang Miao <[email protected]>
> ---
> v2: forget to set ret on v1
>
> drivers/leds/leds-lp50xx.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c
> index 5fb4f24ae..f13117eed 100644
> --- a/drivers/leds/leds-lp50xx.c
> +++ b/drivers/leds/leds-lp50xx.c
> @@ -487,8 +487,10 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
> */
> mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE,
> sizeof(*mc_led_info), GFP_KERNEL);
> - if (!mc_led_info)
> - return -ENOMEM;
> + if (!mc_led_info) {
> + ret = -ENOMEM;
> + goto child_out;
> + }
>
> fwnode_for_each_child_node(child, led_node) {
> ret = fwnode_property_read_u32(led_node, "color",
Reviewed-by: Dan Murphy <[email protected]>

2020-11-26 07:26:25

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH v2] leds: lp50xx: add missing fwnode_handle_put in error handling case

Hi!

> Fix to set ret and goto child_out for fwnode_handle_put(child)
> in the error handling case rather than simply return, as done
> elsewhere in this function.
>
> Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
> Reported-by: Hulk Robot <[email protected]>
> Suggested-by: Pavel Machek <[email protected]>
> Signed-off-by: Qinglang Miao <[email protected]>

Thanks, applied.

Best regards,
Pavel

--
http://www.livejournal.com/~pavelmachek


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2020-11-26 07:26:30

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH v2] leds: lp50xx: add missing fwnode_handle_put in error handling case

On Thu 2020-11-19 15:08:41, Qinglang Miao wrote:
> Fix to set ret and goto child_out for fwnode_handle_put(child)
> in the error handling case rather than simply return, as done
> elsewhere in this function.
>
> Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
> Reported-by: Hulk Robot <[email protected]>
> Suggested-by: Pavel Machek <[email protected]>
> Signed-off-by: Qinglang Miao <[email protected]>

Sorry, spoke too fast. We already had equivalent patch in by

Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the
RGB LED driver")
Signed-off-by: Christophe JAILLET
<[email protected]>

Let me push that out in few minutes.. so you can double-check.

Sorry for confusion,

Pavel

--
http://www.livejournal.com/~pavelmachek


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