X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=src%2Fswfc.c;fp=src%2Fswfc.c;h=2db2d108fa3b051dc9108315a0ac088213bb23d5;hp=377b531b22dcfdb3decaefff410c857b67cc6fdb;hb=9a50ba9edbf06370e9bddd344e200591f1f12f06;hpb=ebb9540c156ded8906d33b96418b3a52f26ef2ae

diff --git a/src/swfc.c b/src/swfc.c
index 377b531..2db2d10 100644
--- a/src/swfc.c
+++ b/src/swfc.c
@@ -923,7 +923,7 @@ static void writeInstance(instance_t* i)
     while (frame < currentframe)
     {
         frame++;
-        while (tag->id != ST_SHOWFRAME)
+        while (tag && tag->id != ST_SHOWFRAME)
             tag = tag->next;
         if (parametersChange(i->history, frame))
         {