From 446fd392e85fa8ac527c2e1938889ea0781cca6d Mon Sep 17 00:00:00 2001
From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Fri, 15 Mar 2019 18:18:23 +0000
Subject: Ensure the message port has been initialised

---
 frontends/amiga/schedule.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/frontends/amiga/schedule.c b/frontends/amiga/schedule.c
index 043edc7fe..2d2da3899 100644
--- a/frontends/amiga/schedule.c
+++ b/frontends/amiga/schedule.c
@@ -336,6 +336,7 @@ nserror ami_schedule(int t, void (*callback)(void *p), void *p)
 							ASOIOR_Duplicate, tioreq,
 							TAG_DONE);
 #else
+	if(schedule_msgport == NULL) return NSERROR_NOMEM;
 	nscb = (struct nscallback *)CreateIORequest(schedule_msgport, sizeof(struct nscallback));
 	*nscb = *tioreq;
 #endif
-- 
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