diff options
Diffstat (limited to 'drivers/pwm')
-rw-r--r-- | drivers/pwm/core.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index ebe06efe9de5..2338119a09d8 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -272,20 +272,21 @@ int pwmchip_add(struct pwm_chip *chip) if (!pwm_ops_check(chip)) return -EINVAL; + chip->pwms = kcalloc(chip->npwm, sizeof(*pwm), GFP_KERNEL); + if (!chip->pwms) + return -ENOMEM; + mutex_lock(&pwm_lock); ret = alloc_pwms(chip->npwm); - if (ret < 0) - goto out; + if (ret < 0) { + mutex_unlock(&pwm_lock); + kfree(chip->pwms); + return ret; + } chip->base = ret; - chip->pwms = kcalloc(chip->npwm, sizeof(*pwm), GFP_KERNEL); - if (!chip->pwms) { - ret = -ENOMEM; - goto out; - } - for (i = 0; i < chip->npwm; i++) { pwm = &chip->pwms[i]; @@ -301,18 +302,14 @@ int pwmchip_add(struct pwm_chip *chip) INIT_LIST_HEAD(&chip->list); list_add(&chip->list, &pwm_chips); - ret = 0; + mutex_unlock(&pwm_lock); if (IS_ENABLED(CONFIG_OF)) of_pwmchip_add(chip); -out: - mutex_unlock(&pwm_lock); - - if (!ret) - pwmchip_sysfs_export(chip); + pwmchip_sysfs_export(chip); - return ret; + return 0; } EXPORT_SYMBOL_GPL(pwmchip_add); |