Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755369AbbFBJI0 (ORCPT ); Tue, 2 Jun 2015 05:08:26 -0400 Received: from m50-110.126.com ([123.125.50.110]:46120 "EHLO m50-110.126.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755977AbbFBJIJ (ORCPT ); Tue, 2 Jun 2015 05:08:09 -0400 From: Xunlei Pang To: linux-kernel@vger.kernel.org Cc: rtc-linux@googlegroups.com, Alessandro Zummo , Alexandre Belloni , John Stultz , Arnd Bergmann , Xunlei Pang , Herbert Valerio Riedel Subject: [PATCH v2 3/4] drivers/rtc/isl1208: Replace deprecated rtc_tm_to_time() Date: Tue, 2 Jun 2015 17:04:21 +0800 Message-Id: <1433235862-1638-3-git-send-email-xlpang@126.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1433235862-1638-1-git-send-email-xlpang@126.com> References: <1433235862-1638-1-git-send-email-xlpang@126.com> X-CM-TRANSID: jdKowADHAkWqcW1V1JEqAQ--.1798S4 X-Coremail-Antispam: 1Uf129KBjvJXoW7Zw4kGr4kKF4DXF1rJFW5Jrb_yoW8GF1fpF 47K3s0vrs2qryfWw1DAF18uayrGayUtaykKFZrJa9a93WfX3WDKFW0kr4I9Fy5Xa95C3y3 WF1SkF15tr1UWa7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jvUDJUUUUU= X-Originating-IP: [210.21.223.3] X-CM-SenderInfo: p0ost0bj6rjloofrz/1tbiXBINv1R0Wcs-1QAAsk Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1599 Lines: 51 From: Xunlei Pang isl1208_i2c_set_alarm() uses deprecated rtc_tm_to_time(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_tm_to_time() with rtc_tm_subtract() Cc: Herbert Valerio Riedel Signed-off-by: Xunlei Pang --- drivers/rtc/rtc-isl1208.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index c3c549d..6eb5d36 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -370,22 +370,15 @@ isl1208_i2c_set_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm) struct rtc_time *alarm_tm = &alarm->time; u8 regs[ISL1208_ALARM_SECTION_LEN] = { 0, }; const int offs = ISL1208_REG_SCA; - unsigned long rtc_secs, alarm_secs; struct rtc_time rtc_tm; int err, enable; err = isl1208_i2c_read_time(client, &rtc_tm); if (err) return err; - err = rtc_tm_to_time(&rtc_tm, &rtc_secs); - if (err) - return err; - err = rtc_tm_to_time(alarm_tm, &alarm_secs); - if (err) - return err; /* If the alarm time is before the current time disable the alarm */ - if (!alarm->enabled || alarm_secs <= rtc_secs) + if (!alarm->enabled || rtc_tm_subtract(alarm_tm, &rtc_tm) <= 0) enable = 0x00; else enable = 0x80; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/