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[PATCH] rtc-s3c.c: fix time setting checks 

Fix the year check on setting the time with the S3C24XX RTC driver.  Also
move the debug to before the set to see what is going on if it does fail.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Ben Dooks 2006-08-27 01:23:27 -07:00 committed by Linus Torvalds
parent b6b5bce357
commit 641741e010
1 changed files with 9 additions and 8 deletions
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17
drivers/rtc/rtc-s3c.c
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@ -153,24 +153,25 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
{
void __iomem *base = s3c_rtc_base;
/* the rtc gets round the y2k problem by just not supporting it */
if (tm->tm_year > 100) {
dev_err(dev, "rtc only supports 100 years\n");
return -EINVAL;
}
int year = tm->tm_year - 100;
pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
/* we get around y2k by simply not supporting it */
if (year < 0 || year >= 100) {
dev_err(dev, "rtc only supports 100 years\n");
return -EINVAL;
}
writeb(BIN2BCD(tm->tm_sec), base + S3C2410_RTCSEC);
writeb(BIN2BCD(tm->tm_min), base + S3C2410_RTCMIN);
writeb(BIN2BCD(tm->tm_hour), base + S3C2410_RTCHOUR);
writeb(BIN2BCD(tm->tm_mday), base + S3C2410_RTCDATE);
writeb(BIN2BCD(tm->tm_mon + 1), base + S3C2410_RTCMON);
writeb(BIN2BCD(tm->tm_year - 100), base + S3C2410_RTCYEAR);
writeb(BIN2BCD(year), base + S3C2410_RTCYEAR);
return 0;
}