Commit-ID:  eabdec04385376d560078992710104cc7be2ce1b
Gitweb:     http://git.kernel.org/tip/eabdec04385376d560078992710104cc7be2ce1b
Author:     Thomas Gleixner <[email protected]>
AuthorDate: Tue, 30 May 2017 23:15:51 +0200
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Sun, 4 Jun 2017 15:40:28 +0200

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 <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: John Stultz <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]

---
 kernel/time/posix-cpu-timers.c | 5 +----
 kernel/time/posix-timers.c     | 3 +--
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 96c833a..cb4a4eb 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 48f6c37..0332f7a 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;

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