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Merge branch 'leds-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds

Pull LED fix from Bryan Wu:
 "Pali Rohár and Pavel Machek reported the LED of Nokia N900 doesn't
  work with our latest 3.13-rc6 kernel.  Milo fixed the regression here"

* 'leds-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: lp5521/5523: Remove duplicate mutex
master
Linus Torvalds 8 years ago
parent
commit
324c66ff52
  1. 12
      drivers/leds/leds-lp5521.c
  2. 12
      drivers/leds/leds-lp5523.c

12
drivers/leds/leds-lp5521.c

@ -244,18 +244,12 @@ static int lp5521_update_program_memory(struct lp55xx_chip *chip,
if (i % 2)
goto err;
mutex_lock(&chip->lock);
for (i = 0; i < LP5521_PROGRAM_LENGTH; i++) {
ret = lp55xx_write(chip, addr[idx] + i, pattern[i]);
if (ret) {
mutex_unlock(&chip->lock);
if (ret)
return -EINVAL;
}
}
mutex_unlock(&chip->lock);
return size;
err:
@ -427,15 +421,17 @@ static ssize_t store_engine_load(struct device *dev,
{
struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
struct lp55xx_chip *chip = led->chip;
int ret;
mutex_lock(&chip->lock);
chip->engine_idx = nr;
lp5521_load_engine(chip);
ret = lp5521_update_program_memory(chip, buf, len);
mutex_unlock(&chip->lock);
return lp5521_update_program_memory(chip, buf, len);
return ret;
}
store_load(1)
store_load(2)

12
drivers/leds/leds-lp5523.c

@ -337,18 +337,12 @@ static int lp5523_update_program_memory(struct lp55xx_chip *chip,
if (i % 2)
goto err;
mutex_lock(&chip->lock);
for (i = 0; i < LP5523_PROGRAM_LENGTH; i++) {
ret = lp55xx_write(chip, LP5523_REG_PROG_MEM + i, pattern[i]);
if (ret) {
mutex_unlock(&chip->lock);
if (ret)
return -EINVAL;
}
}
mutex_unlock(&chip->lock);
return size;
err:
@ -548,15 +542,17 @@ static ssize_t store_engine_load(struct device *dev,
{
struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
struct lp55xx_chip *chip = led->chip;
int ret;
mutex_lock(&chip->lock);
chip->engine_idx = nr;
lp5523_load_engine_and_select_page(chip);
ret = lp5523_update_program_memory(chip, buf, len);
mutex_unlock(&chip->lock);
return lp5523_update_program_memory(chip, buf, len);
return ret;
}
store_load(1)
store_load(2)

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