From patchwork Sat Dec 14 22:02:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 1209802 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=bootlin.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47b1lV1967z9sRK for ; Sun, 15 Dec 2019 09:04:06 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727046AbfLNWDF (ORCPT ); Sat, 14 Dec 2019 17:03:05 -0500 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:60987 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726820AbfLNWDE (ORCPT ); Sat, 14 Dec 2019 17:03:04 -0500 X-Originating-IP: 90.65.92.102 Received: from localhost (lfbn-lyo-1-1913-102.w90-65.abo.wanadoo.fr [90.65.92.102]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id E0CDF60003; Sat, 14 Dec 2019 22:03:02 +0000 (UTC) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 03/17] rtc: abx80x: return meaningful value for RTC_VL_READ Date: Sat, 14 Dec 2019 23:02:45 +0100 Message-Id: <20191214220259.621996-4-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191214220259.621996-1-alexandre.belloni@bootlin.com> References: <20191214220259.621996-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org ABX8XX_STATUS_BLF indicates the battery is low and needs to be replaced soon. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-abx80x.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c index 73830670a41f..3521d8e8dc38 100644 --- a/drivers/rtc/rtc-abx80x.c +++ b/drivers/rtc/rtc-abx80x.c @@ -523,12 +523,9 @@ static int abx80x_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) if (status < 0) return status; - tmp = !!(status & ABX8XX_STATUS_BLF); + tmp = status & ABX8XX_STATUS_BLF ? RTC_VL_BACKUP_LOW : 0; - if (copy_to_user((void __user *)arg, &tmp, sizeof(int))) - return -EFAULT; - - return 0; + return put_user(tmp, (unsigned int __user *)arg); case RTC_VL_CLR: status = i2c_smbus_read_byte_data(client, ABX8XX_REG_STATUS);