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-rw-r--r--kernel/time/ntp.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index de6a2d6b3ebb..e64efaf957e8 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -205,7 +205,7 @@ static void sync_cmos_clock(unsigned long dummy)
205 return; 205 return;
206 206
207 getnstimeofday(&now); 207 getnstimeofday(&now);
208 if (abs(xtime.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2) 208 if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2)
209 fail = update_persistent_clock(now); 209 fail = update_persistent_clock(now);
210 210
211 next.tv_nsec = (NSEC_PER_SEC / 2) - now.tv_nsec; 211 next.tv_nsec = (NSEC_PER_SEC / 2) - now.tv_nsec;
@@ -249,10 +249,12 @@ int do_adjtimex(struct timex *txc)
249 249
250 /* Now we validate the data before disabling interrupts */ 250 /* Now we validate the data before disabling interrupts */
251 251
252 if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) 252 if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) {
253 /* singleshot must not be used with any other mode bits */ 253 /* singleshot must not be used with any other mode bits */
254 if (txc->modes != ADJ_OFFSET_SINGLESHOT) 254 if (txc->modes != ADJ_OFFSET_SINGLESHOT &&
255 txc->modes != ADJ_OFFSET_SS_READ)
255 return -EINVAL; 256 return -EINVAL;
257 }
256 258
257 if (txc->modes != ADJ_OFFSET_SINGLESHOT && (txc->modes & ADJ_OFFSET)) 259 if (txc->modes != ADJ_OFFSET_SINGLESHOT && (txc->modes & ADJ_OFFSET))
258 /* adjustment Offset limited to +- .512 seconds */ 260 /* adjustment Offset limited to +- .512 seconds */
@@ -372,7 +374,8 @@ int do_adjtimex(struct timex *txc)
372leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0) 374leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0)
373 result = TIME_ERROR; 375 result = TIME_ERROR;
374 376
375 if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) 377 if ((txc->modes == ADJ_OFFSET_SINGLESHOT) ||
378 (txc->modes == ADJ_OFFSET_SS_READ))
376 txc->offset = save_adjust; 379 txc->offset = save_adjust;
377 else 380 else
378 txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) * 381 txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) *