diff --git a/src/dev/devHistogramSoft.c b/src/dev/devHistogramSoft.c
index ddb1cc8b5..caa005b1f 100644
--- a/src/dev/devHistogramSoft.c
+++ b/src/dev/devHistogramSoft.c
@@ -80,8 +80,8 @@ static long init_record(phistogram)
     /* histogram.svl must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
     switch (phistogram->svl.type) {
     case (CONSTANT) :
-	recGblInitConstantLink(&phistogram->svl,DBF_DOUBLE,&phistogram->sgnl);
-	phistogram->udf = FALSE;
+    if(recGblInitConstantLink(&phistogram->svl,DBF_DOUBLE,&phistogram->sgnl))
+		phistogram->udf = FALSE;
 	break;
     case (PV_LINK) :
     case (DB_LINK) :
diff --git a/src/dev/devHistogramTestAsyn.c b/src/dev/devHistogramTestAsyn.c
index 5b3ef3bbe..dc5868330 100644
--- a/src/dev/devHistogramTestAsyn.c
+++ b/src/dev/devHistogramTestAsyn.c
@@ -107,7 +107,8 @@ static long init_record(phistogram)
 	callbackSetCallback(myCallback,&pcallback->callback);
         pcallback->precord = (struct dbCommon *)phistogram;
 	pcallback->wd_id = wdCreate();
-	recGblInitConstantLink(&phistogram->svl,DBF_DOUBLE,&phistogram->sgnl);
+    if(recGblInitConstantLink(&phistogram->svl,DBF_DOUBLE,&phistogram->sgnl))
+        phistogram->udf = FALSE;
 	break;
     default :
 	recGblRecordError(S_db_badField,(void *)phistogram,