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leds: an30259a: Use devm_mutex_init() for mutex initialization

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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 <gnstark@salutedevices.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240411161032.609544-9-gnstark@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
George Stark 2024-04-11 19:10:32 +03:00 committed by Lee Jones
parent efc347b9ef
commit c382e2e3ec
1 changed files with 4 additions and 10 deletions
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14
drivers/leds/leds-an30259a.c
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@ -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,
};