lkml.org 
[lkml]   [2022]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 1/4] leds: class: simplify the implementation of devm_of_led_get()
Date
Use the devm_add_action_or_reset() helper.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
---
drivers/leds/led-class.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 6a8ea94834fa..2c0d979d0c8a 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -258,11 +258,9 @@ void led_put(struct led_classdev *led_cdev)
}
EXPORT_SYMBOL_GPL(led_put);

-static void devm_led_release(struct device *dev, void *res)
+static void devm_led_release(void *cdev)
{
- struct led_classdev **p = res;
-
- led_put(*p);
+ led_put(cdev);
}

/**
@@ -280,7 +278,7 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
int index)
{
struct led_classdev *led;
- struct led_classdev **dr;
+ int ret;

if (!dev)
return ERR_PTR(-EINVAL);
@@ -289,15 +287,9 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
if (IS_ERR(led))
return led;

- dr = devres_alloc(devm_led_release, sizeof(struct led_classdev *),
- GFP_KERNEL);
- if (!dr) {
- led_put(led);
- return ERR_PTR(-ENOMEM);
- }
-
- *dr = led;
- devres_add(dev, dr);
+ ret = devm_add_action_or_reset(dev, devm_led_release, led);
+ if (ret)
+ return ERR_PTR(ret);

return led;
}
--
2.25.1
\
 
 \ /
  Last update: 2022-08-24 12:31    [W:0.041 / U:0.064 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site