diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mockup.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index da76267aa85c..d78e8e081f5a 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -210,24 +210,23 @@ static ssize_t gpio_mockup_event_write(struct file *file, struct gpio_chip *gc; int rv, val; - sfile = file->private_data; - priv = sfile->private; - desc = priv->desc; - chip = priv->chip; - gc = &chip->gc; - rv = kstrtoint_from_user(usr_buf, size, 0, &val); if (rv) return rv; if (val != 0 && val != 1) return -EINVAL; - if (!chip->lines[priv->offset].irq_enabled) - return size; + sfile = file->private_data; + priv = sfile->private; + desc = priv->desc; + chip = priv->chip; + gc = &chip->gc; - gpiod_set_value_cansleep(desc, val); - priv->chip->irq_ctx.irq = gc->irq_base + priv->offset; - irq_work_queue(&priv->chip->irq_ctx.work); + if (chip->lines[priv->offset].irq_enabled) { + gpiod_set_value_cansleep(desc, val); + priv->chip->irq_ctx.irq = gc->irq_base + priv->offset; + irq_work_queue(&priv->chip->irq_ctx.work); + } return size; } |