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Diffstat (limited to 'kernel/posix-timers.c')
-rw-r--r--kernel/posix-timers.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index a4dbfe71c5a5..c1e2636f9e45 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -253,6 +253,7 @@ static __init int init_posix_timers(void)
.nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
+ .timer_get = common_timer_get,
};
struct k_clock clock_monotonic = {
.clock_getres = hrtimer_get_res,
@@ -261,6 +262,7 @@ static __init int init_posix_timers(void)
.nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
+ .timer_get = common_timer_get,
};
struct k_clock clock_monotonic_raw = {
.clock_getres = hrtimer_get_res,
@@ -712,22 +714,28 @@ common_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting)
SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
struct itimerspec __user *, setting)
{
- struct k_itimer *timr;
struct itimerspec cur_setting;
+ struct k_itimer *timr;
+ struct k_clock *kc;
unsigned long flags;
+ int ret = 0;
timr = lock_timer(timer_id, &flags);
if (!timr)
return -EINVAL;
- CLOCK_DISPATCH(timr->it_clock, timer_get, (timr, &cur_setting));
+ kc = clockid_to_kclock(timr->it_clock);
+ if (WARN_ON_ONCE(!kc || !kc->timer_get))
+ ret = -EINVAL;
+ else
+ kc->timer_get(timr, &cur_setting);
unlock_timer(timr, flags);
- if (copy_to_user(setting, &cur_setting, sizeof (cur_setting)))
+ if (!ret && copy_to_user(setting, &cur_setting, sizeof (cur_setting)))
return -EFAULT;
- return 0;
+ return ret;
}
/*