OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

PM: runtime: Fix timer_expires data type on 32-bit arches 

Commit 8234f6734c ("PM-runtime: Switch autosuspend over to using
hrtimers") switched PM runtime autosuspend to use hrtimers and all
related time accounting in ns, but missed to update the timer_expires
data type in struct dev_pm_info to u64.

This causes the timer_expires value to be truncated on 32-bit
architectures when assignment is done from u64 values:

rpm_suspend()
|- dev->power.timer_expires = expires;

Fix it by changing the timer_expires type to u64.

Fixes: 8234f6734c ("PM-runtime: Switch autosuspend over to using hrtimers")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: 5.0+ <stable@vger.kernel.org> # 5.0+
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Grygorii Strashko 2020-09-18 19:55:18 +03:00 committed by Rafael J. Wysocki
parent d12544fb2a
commit 6b61d49a55
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/pm.h
View File

@ -590,7 +590,7 @@ struct dev_pm_info {
#endif #endif
#ifdef CONFIG_PM #ifdef CONFIG_PM
struct hrtimer suspend_timer; struct hrtimer suspend_timer;
unsigned long timer_expires; u64 timer_expires;
struct work_struct work; struct work_struct work;
wait_queue_head_t wait_queue; wait_queue_head_t wait_queue;
struct wake_irq *wakeirq; struct wake_irq *wakeirq;