From 84df076e382d93e4ebb736826b3fcaff6c0cee64 Mon Sep 17 00:00:00 2001
From: Marty Kraimer <mrkraimer@comcast.net>
Date: Tue, 15 Oct 1996 19:15:26 +0000
Subject: [PATCH] checks that lset was allocated

---
 src/db/dbLock.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/db/dbLock.c b/src/db/dbLock.c
index a447c34ae..84c981d19 100644
--- a/src/db/dbLock.c
+++ b/src/db/dbLock.c
@@ -207,10 +207,15 @@ void dbLockSetRecordLock(dbCommon *precord)
 
 void dbScanLock(dbCommon *precord)
 {
-    lockRecord	*plockRecord = (lockRecord *)precord->lset;
+    lockRecord	*plockRecord;
     lockSet	*plockSet;
     STATUS	status;
 
+    if(!(plockRecord= (lockRecord *)precord->lset)) {
+	epicsPrintf("dbScanLock plockRecord is NULL record %s\n",
+	    precord->name);
+	exit(1);
+    }
     while(TRUE) {
 	if(changingLockSets) {
 	    semTake(globalWaitSemid,WAIT_FOREVER);