From b35692ebdef0c1cd4a05a58559a94ced54ff9c82 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 8 Mar 2007 00:14:25 +0000 Subject: [PATCH] [CHAR] ds1286: Fix handling of seconds in RTC_ALM_SET ioctl. o Fix use of uninitialized variable sec. o Make the RTC_ALM_SET ioctl return -EINVAL for non-zero seconds - the DS1286 has no second field for the alarm time. o Replace the obscure BIN_TO_BCD macro with BIN2BCD. Signed-off-by: Ralf Baechle --- drivers/char/ds1286.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/char/ds1286.c b/drivers/char/ds1286.c index 6d58b0370802..59146e3365ba 100644 --- a/drivers/char/ds1286.c +++ b/drivers/char/ds1286.c @@ -197,6 +197,7 @@ static int ds1286_ioctl(struct inode *inode, struct file *file, hrs = alm_tm.tm_hour; min = alm_tm.tm_min; + sec = alm_tm.tm_sec; if (hrs >= 24) hrs = 0xff; @@ -204,9 +205,11 @@ static int ds1286_ioctl(struct inode *inode, struct file *file, if (min >= 60) min = 0xff; - BIN_TO_BCD(sec); - BIN_TO_BCD(min); - BIN_TO_BCD(hrs); + if (sec != 0) + return -EINVAL; + + min = BIN2BCD(min); + min = BIN2BCD(hrs); spin_lock(&ds1286_lock); rtc_write(hrs, RTC_HOURS_ALARM); -- GitLab