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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-02-06 23:05:15 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-02-06 23:05:15 +0300 |
| commit | f0adc82064a5c28b34bdbc18e2d178c32094770b (patch) | |
| tree | 42c051d53c978c722687a2dc341f2b54db271417 /drivers | |
| parent | 43a723286f3cae795418c62bc41c3cce73791a81 (diff) | |
| parent | 55835eb62fad1253c9e657a667549945e4be9759 (diff) | |
| download | linux-f0adc82064a5c28b34bdbc18e2d178c32094770b.tar.xz | |
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
lockdep, timer: Fix del_timer_sync() annotation
RTC: Prevents a division by zero in kernel code.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/rtc/class.c | 1 | ||||
| -rw-r--r-- | drivers/rtc/interface.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 9583cbcc6b79..c404b61386bf 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -143,6 +143,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev, rtc->id = id; rtc->ops = ops; rtc->owner = owner; + rtc->irq_freq = 1; rtc->max_user_freq = 64; rtc->dev.parent = dev; rtc->dev.class = rtc_class; diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 925006d33109..a0c01967244d 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -464,6 +464,9 @@ int rtc_irq_set_freq(struct rtc_device *rtc, struct rtc_task *task, int freq) int err = 0; unsigned long flags; + if (freq <= 0) + return -EINVAL; + spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; |