1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index c24756489612..d607ac2d516b 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -111,16 +111,21 @@ static unsigned long sh_cmt_get_counter(struct sh_cmt_priv *p,
                                         int *has_wrapped)
 {
         unsigned long v1, v2, v3;
+        int o1, o2;
+
+        o1 = sh_cmt_read(p, CMCSR) & p->overflow_bit;
 
         /* Make sure the timer value is stable. Stolen from acpi_pm.c */
         do {
+                o2 = o1;
                 v1 = sh_cmt_read(p, CMCNT);
                 v2 = sh_cmt_read(p, CMCNT);
                 v3 = sh_cmt_read(p, CMCNT);
-        } while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
-                          || (v3 > v1 && v3 < v2)));
+                o1 = sh_cmt_read(p, CMCSR) & p->overflow_bit;
+        } while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
+                          || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
 
-        *has_wrapped = sh_cmt_read(p, CMCSR) & p->overflow_bit;
+        *has_wrapped = o1;
         return v2;
 }
 
@@ -394,7 +399,7 @@ static cycle_t sh_cmt_clocksource_read(struct clocksource *cs)
         raw = sh_cmt_get_counter(p, &has_wrapped);
 
         if (unlikely(has_wrapped))
-                raw = p->match_value;
+                raw += p->match_value;
         spin_unlock_irqrestore(&p->lock, flags);
 
         return value + raw;