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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Thu, 24 Jan 2013 04:54:53 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r245870 - head/sys/dev/bge
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Author: yongari
Date: Thu Jan 24 04:54:53 2013
New Revision: 245870
URL: http://svnweb.freebsd.org/changeset/base/245870

Log:
  bge_attach() can fail before attaching mii(4). So make sure to check
  bge_miibus before detaching mii(4).

Modified:
  head/sys/dev/bge/if_bge.c

Modified: head/sys/dev/bge/if_bge.c
==============================================================================
--- head/sys/dev/bge/if_bge.c	Thu Jan 24 03:33:15 2013	(r245869)
+++ head/sys/dev/bge/if_bge.c	Thu Jan 24 04:54:53 2013	(r245870)
@@ -3899,9 +3899,9 @@ bge_detach(device_t dev)
 	if (sc->bge_tq)
 		taskqueue_drain(sc->bge_tq, &sc->bge_intr_task);
 
-	if (sc->bge_flags & BGE_FLAG_TBI) {
+	if (sc->bge_flags & BGE_FLAG_TBI)
 		ifmedia_removeall(&sc->bge_ifmedia);
-	} else {
+	else if (sc->bge_miibus != NULL) {
 		bus_generic_detach(dev);
 		device_delete_child(dev, sc->bge_miibus);
 	}