KOSAKI Motohiro 98d6f4dd84 alarmtimer: return EINVAL instead of ENOTSUPP if rtcdev doesn't exist ... 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 this is incorrect. First, ENOTSUPP isn't exported to userland (ENOTSUP or EOPNOTSUP are the closest userland equivlents). Second, Posix and Linux man pages agree that clock_gettime and clock_getres should return EINVAL if clk_id argument is invalid. While the arugment that the clockid is valid, but just not supported on this hardware could be made, this is just a technicality that doesn't help userspace applicaitons, and only complicates error handling. Thus, this patch changes the code to use EINVAL. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: stable <stable@vger.kernel.org> #3.0 and up Reported-by: Vit Ondruch <v.ondruch@tiscali.cz> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> [jstultz: Tweaks to commit message to include full rational] Signed-off-by: John Stultz <john.stultz@linaro.org>		2013-10-18 16:23:58 -07:00
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alarmtimer.c	alarmtimer: return EINVAL instead of ENOTSUPP if rtcdev doesn't exist	2013-10-18 16:23:58 -07:00
clockevents.c	clockevents: Implement unbind functionality	2013-05-16 11:09:18 +02:00
clocksource.c	clocksource: Fix 'ret' data type of sysfs_override_clocksource() and sysfs_unbind_clocksource()	2013-09-17 11:19:27 -07:00
jiffies.c	time: Kill xtime_lock, replacing it with jiffies_lock	2012-11-13 14:08:23 -05:00
Kconfig	nohz: Drop generic vtime obsolete dependency on CONFIG_64BIT	2013-09-30 15:37:01 +02:00
Makefile	sched_clock: Make ARM's sched_clock generic for all architectures	2013-06-12 14:02:13 -07:00
ntp_internal.h	ntp: Rework do_adjtimex to take timespec and tai arguments	2013-04-04 13:18:15 -07:00
ntp.c	Linux 3.12-rc3	2013-10-03 07:52:21 +02:00
posix-clock.c
sched_clock.c	sched_clock: Remove sched_clock_func() hook	2013-10-09 16:54:39 -07:00
tick-broadcast.c	tick: broadcast: Deny per-cpu clockevents from being broadcast sources	2013-10-02 11:34:06 +02:00
tick-common.c	tick: Sanitize broadcast control logic	2013-07-02 14:26:45 +02:00
tick-internal.h	clockevents: Define CS_NAME_LEN unconditionally	2013-05-28 09:28:02 +02:00
tick-oneshot.c
tick-sched.c	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-08-19 09:17:35 -07:00
timeconv.c
timekeeping_debug.c	power: Add option to log time spent in suspend	2013-05-29 12:57:34 -07:00
timekeeping_internal.h	power: Add option to log time spent in suspend	2013-05-29 12:57:34 -07:00
timekeeping.c	timekeeping: Fix HRTICK related deadlock from ntp lock changes	2013-09-12 07:49:51 +02:00
timer_list.c	timer_list: correct the iterator for timer_list	2013-08-28 19:26:38 -07:00
timer_stats.c	timer stats: Add a 'Collection: active/inactive' line to timer usage statistics	2013-10-10 09:59:25 +02:00