Index: hwpmc_logging.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/hwpmc/hwpmc_logging.c,v
retrieving revision 1.4
diff -u -r1.4 hwpmc_logging.c
--- hwpmc_logging.c	5 Dec 2005 11:58:32 -0000	1.4
+++ hwpmc_logging.c	26 Dec 2005 10:07:01 -0000
@@ -621,7 +621,7 @@
 
 	/* remove this owner from the global SS pmc owner list */
 	if (po->po_sscount)
-		LIST_REMOVE(po, po_ssnext);
+		return EBUSY;
 
 	KASSERT(po->po_file != NULL,
 	    ("[pmc,%d] po=%p no log file", __LINE__, po));