diff options
| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-08-23 02:33:04 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-08-24 16:34:51 +0200 |
| commit | ea369ea6d828930c0cf0cacf81f6fd9dff61992d (patch) | |
| tree | 5c0ca38a3319f5e9949899824bf5bc9911d873e4 /drivers/rtc | |
| parent | rtc: mxc: avoid disabling interrupts on device close (diff) | |
| download | linux-ea369ea6d828930c0cf0cacf81f6fd9dff61992d.tar.xz linux-ea369ea6d828930c0cf0cacf81f6fd9dff61992d.zip | |
rtc: remove .open() and .release()
There are no driver left using .open and .release. There is no good use
case for them as there is nothing the character device interface does that
should not be done in the sysfs interface or in-kernel interface.
Remove those callbacks now to avoid future confusion.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-dev.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index 794bc4fa4937..00efe24a6063 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -24,28 +24,19 @@ static dev_t rtc_devt; static int rtc_dev_open(struct inode *inode, struct file *file) { - int err; struct rtc_device *rtc = container_of(inode->i_cdev, struct rtc_device, char_dev); - const struct rtc_class_ops *ops = rtc->ops; if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags)) return -EBUSY; file->private_data = rtc; - err = ops->open ? ops->open(rtc->dev.parent) : 0; - if (err == 0) { - spin_lock_irq(&rtc->irq_lock); - rtc->irq_data = 0; - spin_unlock_irq(&rtc->irq_lock); - - return 0; - } + spin_lock_irq(&rtc->irq_lock); + rtc->irq_data = 0; + spin_unlock_irq(&rtc->irq_lock); - /* something has gone wrong */ - clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags); - return err; + return 0; } #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL @@ -438,9 +429,6 @@ static int rtc_dev_release(struct inode *inode, struct file *file) rtc_update_irq_enable(rtc, 0); rtc_irq_set_state(rtc, NULL, 0); - if (rtc->ops->release) - rtc->ops->release(rtc->dev.parent); - clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags); return 0; } |