From 75e1dcd9cfa2448172373b7908ce446a2bfae0c2 Mon Sep 17 00:00:00 2001
From: Jared Boone <jboone@earfeast.com>
Date: Sat, 4 Jan 2014 10:15:01 -0800
Subject: [PATCH] Don't update MAX2837 freq_cache unless set_freq() is
 successful.

---
 firmware/common/tuning.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/firmware/common/tuning.c b/firmware/common/tuning.c
index aefeafc4..66a01d76 100644
--- a/firmware/common/tuning.c
+++ b/firmware/common/tuning.c
@@ -110,7 +110,9 @@ bool set_freq(const uint64_t freq)
 		success = false;
 	}
 	max2837_set_mode(prior_max2837_mode);
-	freq_cache = freq;
+	if( success ) {
+		freq_cache = freq;
+	}
 	return success;
 }