AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 16:40:59 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

rtc: verify a critical argument to rtc_update_irq() before using it

Browse Source 
This small addition to the core simplifies code in the drivers and makes
them more robust when handling shared IRQs.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alessandro Zummo 2014-04-03 14:50:09 -07:00 committed by Linus Torvalds
parent c93a3ae2d2
commit 131c9cc832
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/rtc/interface.c
View File

@ -584,6 +584,9 @@ enum hrtimer_restart rtc_pie_update_irq(struct hrtimer *timer)
void rtc_update_irq(struct rtc_device *rtc,
unsigned long num, unsigned long events)
{
if (unlikely(IS_ERR_OR_NULL(rtc)))
return;
pm_stay_awake(rtc->dev.parent);
schedule_work(&rtc->irqwork);
}