Commit-ID: 85dc8f05c93c8105987de9d7e7cebf15a72ff4ec Gitweb: http://git.kernel.org/tip/85dc8f05c93c8105987de9d7e7cebf15a72ff4ec Author: Andreas Schwab <sch...@linux-m68k.org> AuthorDate: Tue, 21 Aug 2012 20:30:47 -0400 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Wed, 22 Aug 2012 10:42:13 +0200
time: Fix casting issue in timekeeping_forward_now arch_gettimeoffset returns a u32 value which when shifted by tk->shift can overflow. This issue was introduced with 1e75fa8be (time: Condense timekeeper.xtime into xtime_sec) Cast it to u64 first. Signed-off-by: Andreas Schwab <sch...@linux-m68k.org> Signed-off-by: John Stultz <john.stu...@linaro.org> Cc: Prarit Bhargava <pra...@redhat.com> Cc: Ingo Molnar <mi...@kernel.org> Link: http://lkml.kernel.org/r/1345595449-34965-3-git-send-email-john.stu...@linaro.org Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- kernel/time/timekeeping.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
