src/hg/makeDb/hgTrackDb/hgTrackDb.c 1.53

Index: src/hg/makeDb/hgTrackDb/hgTrackDb.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/makeDb/hgTrackDb/hgTrackDb.c,v
retrieving revision 1.52
retrieving revision 1.53
diff -b -B -U 4 -r1.52 -r1.53
--- src/hg/makeDb/hgTrackDb/hgTrackDb.c	5 Jun 2009 19:27:44 -0000	1.52
+++ src/hg/makeDb/hgTrackDb/hgTrackDb.c	19 Jun 2009 23:53:39 -0000	1.53
@@ -426,9 +426,9 @@
 		tdbMarkAsCompositeChild(td);
 		}
 	    else
 		{
-		if (hashFindVal(prunedTracks, trackName))
+		if ((prunedTracks != NULL) && hashFindVal(prunedTracks, trackName))
 		    {	/* parent was pruned, get rid of subTrack too */
 		    hashAdd(removeSubTracks, td->tableName, td);
 		    }
 		else