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Message-Id: <20190415183733.048867920@linuxfoundation.org> Date: Mon, 15 Apr 2019 20:59:00 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Andrei Vagin <avagin@...il.com>, Thomas Gleixner <tglx@...utronix.de>, Mukesh Ojha <mojha@...eaurora.org>, Stephen Boyd <sboyd@...nel.org>, John Stultz <john.stultz@...aro.org> Subject: [PATCH 4.14 42/69] alarmtimer: Return correct remaining time From: Andrei Vagin <avagin@...il.com> commit 07d7e12091f4ab869cc6a4bb276399057e73b0b3 upstream. To calculate a remaining time, it's required to subtract the current time from the expiration time. In alarm_timer_remaining() the arguments of ktime_sub are swapped. Fixes: d653d8457c76 ("alarmtimer: Implement remaining callback") Signed-off-by: Andrei Vagin <avagin@...il.com> Signed-off-by: Thomas Gleixner <tglx@...utronix.de> Reviewed-by: Mukesh Ojha <mojha@...eaurora.org> Cc: Stephen Boyd <sboyd@...nel.org> Cc: John Stultz <john.stultz@...aro.org> Cc: stable@...r.kernel.org Link: https://lkml.kernel.org/r/20190408041542.26338-1-avagin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- kernel/time/alarmtimer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -597,7 +597,7 @@ static ktime_t alarm_timer_remaining(str { struct alarm *alarm = &timr->it.alarm.alarmtimer; - return ktime_sub(now, alarm->node.expires); + return ktime_sub(alarm->node.expires, now); } /**
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