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Thadeu Lima de Souza Cascardo 3784576fc6 alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP 
commit f18ddc13af upstream.

ENOTSUPP is not supposed to be returned to userspace. This was found on an
OpenPower machine, where the RTC does not support set_alarm.

On that system, a clock_nanosleep(CLOCK_REALTIME_ALARM, ...) results in
"524 Unknown error 524"

Replace it with EOPNOTSUPP which results in the expected "95 Operation not
supported" error.

Fixes: 1c6b39ad3f (alarmtimers: Return -ENOTSUPP if no RTC device is present)
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190903171802.28314-1-cascardo@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-05 13:10:07 +02:00
..
alarmtimer.c alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP 2019-10-05 13:10:07 +02:00
clockevents.c clockevents: Warn if cpu_all_mask is used as cpumask 2018-08-02 14:55:53 +02:00
clocksource.c clocksource: Revert "Remove kthread" 2018-09-06 23:38:35 +02:00
hrtimer.c Merge branch 'fortglx/4.19/time' of https://git.linaro.org/people/john.stultz/linux into timers/core 2018-07-12 22:19:58 +02:00
itimer.c pid: Implement PIDTYPE_TGID 2018-07-21 10:43:12 -05:00
jiffies.c jiffies: Revert bogus conversion of NSEC_PER_SEC to TICK_NSEC 2017-03-07 11:03:28 +01:00
Kconfig sched/isolation: Eliminate NO_HZ_FULL_ALL 2018-02-15 15:40:37 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ntp.c ntp: Limit TAI-UTC offset 2019-07-26 09:14:10 +02:00
ntp_internal.h timekeeping/ntp: Constify some function arguments 2018-07-19 17:08:05 -07:00
posix-clock.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
posix-cpu-timers.c posix-cpu-timers: Sanitize bogus WARNONS 2019-10-05 13:09:47 +02:00
posix-stubs.c posix-timers: Use new ktime_get_*_ts64() helpers 2018-06-19 09:56:27 +02:00
posix-timers.c posix-timers: Fix division by zero bug 2018-12-29 13:37:56 +01:00
posix-timers.h posix-timers: Make forward callback return s64 2018-07-02 11:33:25 +02:00
sched_clock.c timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze() 2019-04-27 09:36:38 +02:00
test_udelay.c time: Avoid timespec in udelay_test 2016-06-20 12:47:26 -07:00
tick-broadcast-hrtimer.c tick/broadcast-hrtimer: Use cpu_possible_mask for ce_broadcast_hrtimer 2018-08-02 14:55:52 +02:00
tick-broadcast.c tick/broadcast: Use for_each_cpu() specially on UP kernels 2018-05-15 22:45:54 +02:00
tick-common.c timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze() 2019-04-27 09:36:38 +02:00
tick-internal.h Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME 2018-04-26 14:53:32 +02:00
tick-oneshot.c clockevents: Fix kernel messages split across multiple lines 2018-04-17 17:18:04 +02:00
tick-sched.c nohz: Fix local_timer_softirq_pending() 2018-07-31 22:08:44 +02:00
tick-sched.h nohz: Gather tick_sched booleans under a common flag field 2018-04-09 11:54:57 +02:00
time.c timekeeping: Force upper bound for setting CLOCK_REALTIME 2019-05-31 06:46:29 -07:00
timeconst.bc time: Introduce jiffies64_to_nsecs() 2017-02-01 09:13:45 +01:00
timeconv.c time: Add time64_to_tm() 2016-06-20 12:47:15 -07:00
timecounter.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
timekeeping.c timekeeping: Use proper ktime_add when adding nsecs in coarse offset 2019-09-16 08:21:42 +02:00
timekeeping.h timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze() 2019-04-27 09:36:38 +02:00
timekeeping_debug.c timekeeping/ntp: Constify some function arguments 2018-07-19 17:08:05 -07:00
timekeeping_internal.h timekeeping/ntp: Constify some function arguments 2018-07-19 17:08:05 -07:00
timer.c timers: Clear timer_base::must_forward_clk with timer_base::lock held 2018-08-02 12:52:38 +02:00
timer_list.c timer_list: Guard procfs specific code 2019-07-26 09:14:10 +02:00