From 056edc0d8a0820259c0494d822d2ad881e0cabb2 Mon Sep 17 00:00:00 2001
From: Andrew Johnson <anj@aps.anl.gov>
Date: Sun, 28 Aug 2016 23:41:35 -0500
Subject: [PATCH] Undo buggy change

---
 src/std/dev/devAiSoft.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/std/dev/devAiSoft.c b/src/std/dev/devAiSoft.c
index ba669f4c9..74a2a759a 100644
--- a/src/std/dev/devAiSoft.c
+++ b/src/std/dev/devAiSoft.c
@@ -61,6 +61,9 @@ static long read_ai(aiRecord *prec)
 {
     double val;
 
+    if (dbLinkIsConstant(&prec->inp))
+        return 2;
+
     if (!dbGetLink(&prec->inp, DBR_DOUBLE, &val, 0, 0)) {
 
         /* Apply smoothing algorithm */