From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20921C10F0E for ; Mon, 15 Apr 2019 19:08:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D6811218D3 for ; Mon, 15 Apr 2019 19:08:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555355288; bh=8rRQHwobng+aZa9UIy3jd+ANvm5R4fXjvQ7dzLT+bWQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=WZ18tNcKTuO7KiyVM4Nney95F83SaT2iDUS58BMIyQKYkSKVoxTFasI3yhPGShSEs 0pxo9Q1lMM1t+SKN6DkX5RCjSCK6J6ixmvrX/dR6I31TDJpAdiVfU+OrTq8cOWWKSB eS9n8lmWiaPL5GAUtCf6RXyplGvw4YGPJaiGsSAY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730371AbfDOTIG (ORCPT ); Mon, 15 Apr 2019 15:08:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:43222 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730363AbfDOTIC (ORCPT ); Mon, 15 Apr 2019 15:08:02 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 080FC218A1; Mon, 15 Apr 2019 19:08:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555355281; bh=8rRQHwobng+aZa9UIy3jd+ANvm5R4fXjvQ7dzLT+bWQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GSHkstbN5wXfDW5cunLfAZzLqTyt4U6osYg5CPykQIkFpnZnIxHJgPHLoVRHv3S63 q2FEsJqU73FM1vf51qjP5zOmj3pFwy0c+nyhYgdsQpuHjrYcHUIBYXnmqAkqkfzn9l QfcCaIsBCQ4TRQjsj84nCjbkH2lX4v2AIMSqi3gQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrei Vagin , Thomas Gleixner , Mukesh Ojha , Stephen Boyd , John Stultz Subject: [PATCH 4.19 059/101] alarmtimer: Return correct remaining time Date: Mon, 15 Apr 2019 20:58:57 +0200 Message-Id: <20190415183743.631262943@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190415183740.341577907@linuxfoundation.org> References: <20190415183740.341577907@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrei Vagin 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 Signed-off-by: Thomas Gleixner Reviewed-by: Mukesh Ojha Cc: Stephen Boyd Cc: John Stultz Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190408041542.26338-1-avagin@gmail.com Signed-off-by: Greg Kroah-Hartman --- 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); } /**