wct4xxp: Close a memory leak in the VPM450 error path.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
Acked-By: Russ Meyerriecks <rmeyerriecks@digium.com>

Origin: http://svnview.digium.com/svn/dahdi?view=rev&rev=9539

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/branches/2.4@9686 a0bf4364-ded3-4de4-8d8a-66a801d63aff

drivers/dahdi/wct4xxp/vpm450m.c

@@ -511,6 +511,7 @@ struct vpm450m *init_vpm450m(void *wc, int *isalaw, int numspans, const struct f
 #ifdef CONFIG_4KSTACKS
 		local_irq_restore(flags);
 #endif
+		vfree(vpm450m->pApiInstance);
 		kfree(vpm450m);
 		kfree(ChipOpen);
 		kfree(ChannelOpen);