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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Mon, 19 Jul 2010 23:25:19 +0000 (UTC)
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Subject: svn commit: r210267 - head/sys/dev/bce
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Author: yongari
Date: Mon Jul 19 23:25:19 2010
New Revision: 210267
URL: http://svn.freebsd.org/changeset/base/210267

Log:
  Add KASSERT to check number of returned DMA segments.
  
  Reviewed by:	davidch

Modified:
  head/sys/dev/bce/if_bce.c

Modified: head/sys/dev/bce/if_bce.c
==============================================================================
--- head/sys/dev/bce/if_bce.c	Mon Jul 19 22:28:07 2010	(r210266)
+++ head/sys/dev/bce/if_bce.c	Mon Jul 19 23:25:19 2010	(r210267)
@@ -3088,6 +3088,8 @@ bce_dma_map_addr(void *arg, bus_dma_segm
 {
 	bus_addr_t *busaddr = arg;
 
+	KASSERT(nseg == 1, ("%s(): Too many segments returned (%d)!",
+	    __FUNCTION__, nseg));
 	/* Simulate a mapping failure. */
 	DBRUNIF(DB_RANDOMTRUE(dma_map_addr_failed_sim_control),
 	    error = ENOMEM);