From 7c6a9862fd7c6e49350aaf527194603930b10ca2 Mon Sep 17 00:00:00 2001
From: Brian Olson <brian@amergint.com>
Date: Fri, 16 Jun 2017 12:58:33 -0400
Subject: [PATCH] added workaround for ticks being returned as zero from 2.6.32
 kernel.

Signed-off-by: Brian Olson <brian@amergint.com>
---
 clockadj.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clockadj.c b/clockadj.c
index 5eb7cce..86c7b33 100644
--- a/clockadj.c
+++ b/clockadj.c
@@ -73,7 +73,7 @@ double clockadj_get_freq(clockid_t clkid)
 		pr_err("failed to read out the clock frequency adjustment: %m");
 	} else {
 		f = tx.freq / 65.536;
-		if (clkid == CLOCK_REALTIME && realtime_nominal_tick)
+		if (clkid == CLOCK_REALTIME && realtime_nominal_tick && tx.tick)
 			f += 1e3 * realtime_hz * (tx.tick - realtime_nominal_tick);
 	}
 	return f;