diff options
| author | Andrew Davis <afd@ti.com> | 2025-04-07 13:35:51 -0500 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2025-05-14 09:24:52 +0100 |
| commit | 87a59548af95db9b6b3a19fdd5b4e6c49bdbc285 (patch) | |
| tree | 87a3f678c559fd36aebd6be6fb9050eb3a43a57d | |
| parent | 4bab18dcb452e00e28e181eb2d7a3a3a6a5d1413 (diff) | |
leds: lp8860: Use new mutex guards to cleanup function exits
Use scoped mutex guards to simplify return paths. While here use
devm_mutex_init() to register the muxex so it also is cleaned
up automatically.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20250407183555.409687-2-afd@ti.com
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | drivers/leds/leds-lp8860.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c index 2b1c68e60949..2d91f476f0b7 100644 --- a/drivers/leds/leds-lp8860.c +++ b/drivers/leds/leds-lp8860.c @@ -135,7 +135,7 @@ static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock) { int ret; - mutex_lock(&led->lock); + guard(mutex)(&led->lock); if (lock == LP8860_UNLOCK_EEPROM) { ret = regmap_write(led->regmap, @@ -143,7 +143,7 @@ static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock) LP8860_EEPROM_CODE_1); if (ret) { dev_err(&led->client->dev, "EEPROM Unlock failed\n"); - goto out; + return ret; } ret = regmap_write(led->regmap, @@ -151,14 +151,14 @@ static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock) LP8860_EEPROM_CODE_2); if (ret) { dev_err(&led->client->dev, "EEPROM Unlock failed\n"); - goto out; + return ret; } ret = regmap_write(led->regmap, LP8860_EEPROM_UNLOCK, LP8860_EEPROM_CODE_3); if (ret) { dev_err(&led->client->dev, "EEPROM Unlock failed\n"); - goto out; + return ret; } } else { ret = regmap_write(led->regmap, @@ -166,8 +166,6 @@ static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock) LP8860_LOCK_EEPROM); } -out: - mutex_unlock(&led->lock); return ret; } @@ -204,30 +202,29 @@ static int lp8860_brightness_set(struct led_classdev *led_cdev, int disp_brightness = brt_val * 255; int ret; - mutex_lock(&led->lock); + guard(mutex)(&led->lock); ret = lp8860_fault_check(led); if (ret) { dev_err(&led->client->dev, "Cannot read/clear faults\n"); - goto out; + return ret; } ret = regmap_write(led->regmap, LP8860_DISP_CL1_BRT_MSB, (disp_brightness & 0xff00) >> 8); if (ret) { dev_err(&led->client->dev, "Cannot write CL1 MSB\n"); - goto out; + return ret; } ret = regmap_write(led->regmap, LP8860_DISP_CL1_BRT_LSB, disp_brightness & 0xff); if (ret) { dev_err(&led->client->dev, "Cannot write CL1 LSB\n"); - goto out; + return ret; } -out: - mutex_unlock(&led->lock); - return ret; + + return 0; } static int lp8860_init(struct lp8860_led *led) @@ -392,7 +389,7 @@ static int lp8860_probe(struct i2c_client *client) led->client = client; led->led_dev.brightness_set_blocking = lp8860_brightness_set; - mutex_init(&led->lock); + devm_mutex_init(&client->dev, &led->lock); i2c_set_clientdata(client, led); @@ -443,8 +440,6 @@ static void lp8860_remove(struct i2c_client *client) dev_err(&led->client->dev, "Failed to disable regulator\n"); } - - mutex_destroy(&led->lock); } static const struct i2c_device_id lp8860_id[] = { |