diff options
| author | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-08-10 11:15:13 -0500 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-08-10 11:15:13 -0500 |
| commit | 2d610b80e954045ccfc27558f84e482709e5e5b7 (patch) | |
| tree | 840b3bb52adba07b6f1e4ddf2beb5ad5df480486 /drivers/char/rtc.c | |
| parent | 8a9cd6d676728792aaee31f30015d284acd154a3 (diff) | |
| parent | 86b3786078d63242d3194ffc58ae8dae1d1bbef3 (diff) | |
Merge with /home/shaggy/git/linus-clean/
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'drivers/char/rtc.c')
| -rw-r--r-- | drivers/char/rtc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index d8f9e94ae475..cd4fe8b1709f 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -1209,6 +1209,7 @@ static int rtc_proc_open(struct inode *inode, struct file *file) void rtc_get_rtc_time(struct rtc_time *rtc_tm) { + unsigned long uip_watchdog = jiffies; unsigned char ctrl; #ifdef CONFIG_MACH_DECSTATION unsigned int real_year; @@ -1224,8 +1225,10 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm) * Once the read clears, read the RTC time (again via ioctl). Easy. */ - if (rtc_is_updating() != 0) - msleep(20); + while (rtc_is_updating() != 0 && jiffies - uip_watchdog < 2*HZ/100) { + barrier(); + cpu_relax(); + } /* * Only the values that we read from the RTC are set. We leave |