diff options
Diffstat (limited to 'drivers/video/backlight')
| -rw-r--r-- | drivers/video/backlight/atmel-pwm-bl.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 4886028c9eaa..01af5c2d028a 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -126,40 +126,33 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev) struct atmel_pwm_bl *pwmbl; int retval; + pdata = dev_get_platdata(&pdev->dev); + if (!pdata) + return -ENODEV; + + if (pdata->pwm_compare_max < pdata->pwm_duty_max || + pdata->pwm_duty_min > pdata->pwm_duty_max || + pdata->pwm_frequency == 0) + return -EINVAL; + pwmbl = devm_kzalloc(&pdev->dev, sizeof(struct atmel_pwm_bl), GFP_KERNEL); if (!pwmbl) return -ENOMEM; pwmbl->pdev = pdev; - - pdata = dev_get_platdata(&pdev->dev); - if (!pdata) { - retval = -ENODEV; - goto err_free_mem; - } - - if (pdata->pwm_compare_max < pdata->pwm_duty_max || - pdata->pwm_duty_min > pdata->pwm_duty_max || - pdata->pwm_frequency == 0) { - retval = -EINVAL; - goto err_free_mem; - } - pwmbl->pdata = pdata; pwmbl->gpio_on = pdata->gpio_on; retval = pwm_channel_alloc(pdata->pwm_channel, &pwmbl->pwmc); if (retval) - goto err_free_mem; + return retval; if (pwmbl->gpio_on != -1) { retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on, "gpio_atmel_pwm_bl"); - if (retval) { - pwmbl->gpio_on = -1; + if (retval) goto err_free_pwm; - } /* Turn display off by default. */ retval = gpio_direction_output(pwmbl->gpio_on, @@ -197,7 +190,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev) err_free_pwm: pwm_channel_free(&pwmbl->pwmc); -err_free_mem: + return retval; } |