Fix NULL pointer dereference am: 6e988ba832 am: 3735317327 am: 490dd170bf am: c96ae6403c
am: e26d11fd1f

Change-Id: I866a2d9ec2d0463a457a4c6d3795c65004c502ef
diff --git a/arm-wt-22k/lib_src/eas_mdls.c b/arm-wt-22k/lib_src/eas_mdls.c
index b08e24e..e2cb688 100644
--- a/arm-wt-22k/lib_src/eas_mdls.c
+++ b/arm-wt-22k/lib_src/eas_mdls.c
@@ -683,8 +683,10 @@
     }
 
     /* create the default articulation */
-    Convert_art(&dls, &defaultArt, 0);
-    dls.artCount = 1;
+    if (dls.pDLS) {
+        Convert_art(&dls, &defaultArt, 0);
+        dls.artCount = 1;
+    }
 
     /* parse the lins chunk and load instruments */
     dls.regionCount = dls.instCount = 0;