From: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
Fedora Ruby maintainer reported latest Ruby doesn't work on Fedora Rawhide
on ARM. (http://bugs.ruby-lang.org/issues/9008)
Because of, commit 1c6b39ad3f (alarmtimers: Return -ENOTSUPP if no
RTC device is present) intruduced to return ENOTSUPP when
clock_get{time,res} can't find a RTC device. However it is incorrect.
Posix and Linux man pages agree that clock_gettime and clock_getres
should return EINVAL if clk_id argument is invalid. This is significant
different from timer_create API.
This patch fixes it.
Reported-by: Vit Ondruch <v.ondr...@tiscali.cz>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: John Stultz <john.stu...@linaro.org>
Signed-off-by: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
---
kernel/time/alarmtimer.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index eec50fc..88c9c65 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -490,7 +490,7 @@ static int alarm_clock_getres(const clockid_t which_clock,
struct timespec *tp)
clockid_t baseid = alarm_bases[clock2alarm(which_clock)].base_clockid;
if (!alarmtimer_get_rtcdev())
- return -ENOTSUPP;
+ return -EINVAL;
return hrtimer_get_res(baseid, tp);
}
@@ -507,7 +507,7 @@ static int alarm_clock_get(clockid_t which_clock, struct
timespec *tp)
struct alarm_base *base = &alarm_bases[clock2alarm(which_clock)];
if (!alarmtimer_get_rtcdev())
- return -ENOTSUPP;
+ return -EINVAL;
*tp = ktime_to_timespec(base->gettime());
return 0;
--
1.7.1
--
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