timekeeping: access rtc outside of xtime lock

Lockdep complains about the access of rtc in timekeeping_suspend
inside the interrupt disabled region of the write locked xtime lock.
Move the access outside.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <johnstul@us.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index acc417b5a9b7..f682091fa890 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -325,9 +325,10 @@ static int timekeeping_suspend(struct sys_device *dev, pm_message_t state)
 {
         unsigned long flags;
 
+        timekeeping_suspend_time = read_persistent_clock();
+
         write_seqlock_irqsave(&xtime_lock, flags);
         timekeeping_suspended = 1;
-        timekeeping_suspend_time = read_persistent_clock();
         write_sequnlock_irqrestore(&xtime_lock, flags);
 
         clockevents_notify(CLOCK_EVT_NOTIFY_SUSPEND, NULL);