[PATCH v5 09/10] leds: an30259a: use devm_mutext_init for mutext initialization
From: George Stark <hidden>
Date: 2024-03-07 02:40:58
Also in:
linux-leds, lkml
Subsystem:
led subsystem, the rest · Maintainers:
Lee Jones, Pavel Machek, Linus Torvalds
In this driver LEDs are registered using devm_led_classdev_register() so they are automatically unregistered after module's remove() is done. led_classdev_unregister() calls module's led_set_brightness() to turn off the LEDs and that callback uses mutex which was destroyed already in module's remove() so use devm API instead. Signed-off-by: George Stark <redacted> --- drivers/leds/leds-an30259a.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 0216afed3b6e..decfca447d8a 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c@@ -283,7 +283,10 @@ static int an30259a_probe(struct i2c_client *client) if (err < 0) return err; - mutex_init(&chip->mutex); + err = devm_mutex_init(&client->dev, &chip->mutex); + if (err) + return err; + chip->client = client; i2c_set_clientdata(client, chip);
@@ -317,17 +320,9 @@ static int an30259a_probe(struct i2c_client *client) return 0; exit: - mutex_destroy(&chip->mutex); return err; } -static void an30259a_remove(struct i2c_client *client) -{ - struct an30259a *chip = i2c_get_clientdata(client); - - mutex_destroy(&chip->mutex); -} - static const struct of_device_id an30259a_match_table[] = { { .compatible = "panasonic,an30259a", }, { /* sentinel */ },
@@ -347,7 +342,6 @@ static struct i2c_driver an30259a_driver = { .of_match_table = an30259a_match_table, }, .probe = an30259a_probe, - .remove = an30259a_remove, .id_table = an30259a_id, };
--
2.25.1