diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2009-06-18 16:49:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-19 16:46:05 -0700 |
| commit | e6229bec25be4ba00f31dd26e25721cc96c22262 (patch) | |
| tree | a27e4c51dd8b9aaeb589a147a22bbd06bde77cf0 /drivers/rtc/rtc-ds1307.c | |
| parent | 575c5807f6842422e9fe2432fd48dfcc1d7aef41 (diff) | |
| download | linux-e6229bec25be4ba00f31dd26e25721cc96c22262.tar.gz linux-e6229bec25be4ba00f31dd26e25721cc96c22262.tar.xz | |
rtc: make rtc_update_irq callable with irqs enabled
The rtc_update_irq() might be called with irqs enabled, if a interrupt
handler was registered without IRQF_DISABLED. Use
spin_lock_irqsave/spin_unlock_irqrestore instead of spin_lock/spin_unlock.
Also update kerneldoc and drivers which do extra work to follow the
current interface spec, as suggestted by David Brownell.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-ds1307.c')
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 8a6f9a9f9cb8..47a93c022d91 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -267,12 +267,7 @@ static void ds1307_work(struct work_struct *work) control &= ~DS1337_BIT_A1IE; i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, control); - /* rtc_update_irq() assumes that it is called - * from IRQ-disabled context. - */ - local_irq_disable(); rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); - local_irq_enable(); } out: |