From b5aa0e300c7ff801c55f123092efddbd9adea8af Mon Sep 17 00:00:00 2001
From: Jeff Hill <johill@lanl.gov>
Date: Wed, 26 Apr 1995 02:49:30 +0000
Subject: [PATCH] fixed bug where nill func ptr io block called for get cb at
 disconnect

---
 src/ca/access.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ca/access.c b/src/ca/access.c
index 0dd119605..722a7504b 100644
--- a/src/ca/access.c
+++ b/src/ca/access.c
@@ -1372,7 +1372,7 @@ int 	status)
 
 			caIOBlockFree (monix);
 
-			if (cbRequired) {
+			if (cbRequired && monix->usr_func) {
 				(*monix->usr_func) (args);
 			}
 		}
@@ -2306,7 +2306,7 @@ void		*pfl
 	 * Call user's callback
    	 */
 	LOCKEVENTS;
-	{
+	if (monix->usr_func) {
 		struct event_handler_args args;
 		
 		args.usr = monix->usr_arg;