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authorThomas Gleixner <tglx@linutronix.de>2017-05-30 23:15:51 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-06-04 15:40:28 +0200
commiteabdec04385376d560078992710104cc7be2ce1b (patch)
treeca24f482991666b523d9d0e4b11d3cdad304c676 /kernel
parentposix-timers: Make use of forward/remaining callbacks (diff)
downloadlinux-eabdec04385376d560078992710104cc7be2ce1b.tar.xz
linux-eabdec04385376d560078992710104cc7be2ce1b.zip
posix-timers: Zero settings value in common code
Zero out the settings struct in the common code so the callbacks do not have to do it themself. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/20170530211657.200870713@linutronix.de
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/posix-cpu-timers.c5
-rw-r--r--kernel/time/posix-timers.c3
2 files changed, 2 insertions, 6 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 96c833a61ade..cb4a4eb44279 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -719,10 +719,8 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp
*/
itp->it_interval = ns_to_timespec64(timer->it.cpu.incr);
- if (timer->it.cpu.expires == 0) { /* Timer not armed at all. */
- itp->it_value.tv_sec = itp->it_value.tv_nsec = 0;
+ if (!timer->it.cpu.expires)
return;
- }
/*
* Sample the clock to take the difference with the expiry time.
@@ -746,7 +744,6 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp
* Call the timer disarmed, nothing else to do.
*/
timer->it.cpu.expires = 0;
- itp->it_value = ns_to_timespec64(timer->it.cpu.expires);
return;
} else {
cpu_timer_sample_group(timer->it_clock, p, &now);
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 48f6c37ae5df..0332f7a60fd6 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -645,8 +645,6 @@ common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)
struct timespec64 ts64;
bool sig_none;
- memset(cur_setting, 0, sizeof(*cur_setting));
-
sig_none = (timr->it_sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE;
iv = timr->it_interval;
@@ -705,6 +703,7 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
if (!timr)
return -EINVAL;
+ memset(&cur_setting64, 0, sizeof(cur_setting64));
kc = timr->kclock;
if (WARN_ON_ONCE(!kc || !kc->timer_get))
ret = -EINVAL;