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leds: lp8860: Check return value of devm_mutex_init()

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devm_mutex_init() can fail. With CONFIG_DEBUG_MUTEXES=y the mutex will be
marked as unusable and trigger errors on usage.

Add the missed check.

Fixes: 87a59548af ("leds: lp8860: Use new mutex guards to cleanup function exits")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Andrew Davis <afd@ti.com>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20250617-must_check-devm_mutex_init-v7-2-d9e449f4d224@weissschuh.net
This commit is contained in:
Thomas Weißschuh 2025-06-17 19:08:13 +02:00 committed by Boqun Feng
parent d24a54e032
commit 3b07bb900a
1 changed files with 3 additions and 1 deletions
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4
drivers/leds/leds-lp8860.c
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@ -307,7 +307,9 @@ static int lp8860_probe(struct i2c_client *client)
led->client = client;
led->led_dev.brightness_set_blocking = lp8860_brightness_set;
devm_mutex_init(&client->dev, &led->lock);
ret = devm_mutex_init(&client->dev, &led->lock);
if (ret)
return dev_err_probe(&client->dev, ret, "Failed to initialize lock\n");
led->regmap = devm_regmap_init_i2c(client, &lp8860_regmap_config);
if (IS_ERR(led->regmap)) {