summaryrefslogtreecommitdiff
path: root/drivers/rtc/hctosys.c
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@zytor.com>2010-04-29 16:53:17 -0700
committerH. Peter Anvin <hpa@zytor.com>2010-04-29 16:53:17 -0700
commitd9c5841e22231e4e49fd0a1004164e6fce59b7a6 (patch)
treee1f589c46b3ff79bbe7b1b2469f6362f94576da6 /drivers/rtc/hctosys.c
parentb701a47ba48b698976fb2fe05fb285b0edc1d26a (diff)
parent5967ed87ade85a421ef814296c3c7f182b08c225 (diff)
Merge branch 'x86/asm' into x86/atomic
Merge reason: Conflict between LOCK_PREFIX_HERE and relative alternatives pointers Resolved Conflicts: arch/x86/include/asm/alternative.h arch/x86/kernel/alternative.c Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'drivers/rtc/hctosys.c')
-rw-r--r--drivers/rtc/hctosys.c59
1 files changed, 34 insertions, 25 deletions
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index 33c0e98243ee..bc90b091f195 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -22,48 +22,57 @@
* the best guess is to add 0.5s.
*/
+int rtc_hctosys_ret = -ENODEV;
+
static int __init rtc_hctosys(void)
{
- int err;
+ int err = -ENODEV;
struct rtc_time tm;
+ struct timespec tv = {
+ .tv_nsec = NSEC_PER_SEC >> 1,
+ };
struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
if (rtc == NULL) {
- printk("%s: unable to open rtc device (%s)\n",
+ pr_err("%s: unable to open rtc device (%s)\n",
__FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
- return -ENODEV;
+ goto err_open;
}
err = rtc_read_time(rtc, &tm);
- if (err == 0) {
- err = rtc_valid_tm(&tm);
- if (err == 0) {
- struct timespec tv;
+ if (err) {
+ dev_err(rtc->dev.parent,
+ "hctosys: unable to read the hardware clock\n");
+ goto err_read;
- tv.tv_nsec = NSEC_PER_SEC >> 1;
+ }
- rtc_tm_to_time(&tm, &tv.tv_sec);
+ err = rtc_valid_tm(&tm);
+ if (err) {
+ dev_err(rtc->dev.parent,
+ "hctosys: invalid date/time\n");
+ goto err_invalid;
+ }
- do_settimeofday(&tv);
+ rtc_tm_to_time(&tm, &tv.tv_sec);
- dev_info(rtc->dev.parent,
- "setting system clock to "
- "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- (unsigned int) tv.tv_sec);
- }
- else
- dev_err(rtc->dev.parent,
- "hctosys: invalid date/time\n");
- }
- else
- dev_err(rtc->dev.parent,
- "hctosys: unable to read the hardware clock\n");
+ do_settimeofday(&tv);
+ dev_info(rtc->dev.parent,
+ "setting system clock to "
+ "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ (unsigned int) tv.tv_sec);
+
+err_invalid:
+err_read:
rtc_class_close(rtc);
- return 0;
+err_open:
+ rtc_hctosys_ret = err;
+
+ return err;
}
late_initcall(rtc_hctosys);