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| author | Ralf Baechle <ralf@linux-mips.org> | 2007-03-08 00:14:25 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-03-08 01:10:30 +0000 |
| commit | b35692ebdef0c1cd4a05a58559a94ced54ff9c82 (patch) | |
| tree | 3161106dfae3b4a83c6ca65bbf8a99eb62402915 /drivers/char | |
| parent | 455921451a176d90c5cfef898f061bb6fc83faaf (diff) | |
| download | linux-b35692ebdef0c1cd4a05a58559a94ced54ff9c82.tar.gz linux-b35692ebdef0c1cd4a05a58559a94ced54ff9c82.tar.bz2 linux-b35692ebdef0c1cd4a05a58559a94ced54ff9c82.zip | |
[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 <ralf@linux-mips.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ds1286.c | 9 |
1 files 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); |