From: Andreas Schwab <sch...@linux-m68k.org>
arch_gettimeoffset returns a u32 value which when shifted by tk->shift can
overflow. Cast it to u64 first.
This issue was introduced with 1e75fa8be9fb61e1af46b5b3b176347a4c958ca1
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Prarit Bhargava <pra...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Andreas Schwab <sch...@linux-m68k.org>
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
kernel/time/timekeeping.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 258164a..1dbf80e 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -277,7 +277,7 @@ static void timekeeping_forward_now(struct timekeeper *tk)
tk->xtime_nsec += cycle_delta * tk->mult;
/* If arch requires, add in gettimeoffset() */
- tk->xtime_nsec += arch_gettimeoffset() << tk->shift;
+ tk->xtime_nsec += (u64)arch_gettimeoffset() << tk->shift;
tk_normalize_xtime(tk);
--
1.7.9.5
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