linux-kernel - [PATCH 006/100] rtc: ab-b5ze-s3: stop validating rtc_time in .read

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 21 Feb 2018 21:55:01 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     linux-rtc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 006/100] rtc: ab-b5ze-s3: stop validating rtc_time in .read_time

The RTC core is always calling rtc_valid_tm after the read_time callback.
It is not necessary to call it just before returning from the callback.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-ab-b5ze-s3.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-ab-b5ze-s3.c b/drivers/rtc/rtc-ab-b5ze-s3.c
index a319bf1e49de..e55f35fa0b58 100644
--- a/drivers/rtc/rtc-ab-b5ze-s3.c
+++ b/drivers/rtc/rtc-ab-b5ze-s3.c
@@ -217,7 +217,7 @@ static int _abb5zes3_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct abb5zes3_rtc_data *data = dev_get_drvdata(dev);
 	u8 regs[ABB5ZES3_REG_RTC_SC + ABB5ZES3_RTC_SEC_LEN];
-	int ret;
+	int ret = 0;
 
 	/*
 	 * As we need to read CTRL1 register anyway to access 24/12h
@@ -255,8 +255,6 @@ static int _abb5zes3_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	tm->tm_mon  = bcd2bin(regs[ABB5ZES3_REG_RTC_MO]) - 1; /* starts at 1 */
 	tm->tm_year = bcd2bin(regs[ABB5ZES3_REG_RTC_YR]) + 100;
 
-	ret = rtc_valid_tm(tm);
-
 err:
 	return ret;
 }
-- 
2.16.1