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From: Adrian Chadd <adrian@FreeBSD.org>
Date: Thu, 18 Aug 2011 08:45:35 +0000 (UTC)
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Subject: svn commit: r224963 - user/adrian/if_ath_tx/sys/dev/ath
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Author: adrian
Date: Thu Aug 18 08:45:35 2011
New Revision: 224963
URL: http://svn.freebsd.org/changeset/base/224963

Log:
  Clear bf_next when a buffer is recycled, just to ensure things
  aren't pointing to random memory.

Modified:
  user/adrian/if_ath_tx/sys/dev/ath/if_ath.c

Modified: user/adrian/if_ath_tx/sys/dev/ath/if_ath.c
==============================================================================
--- user/adrian/if_ath_tx/sys/dev/ath/if_ath.c	Thu Aug 18 08:42:39 2011	(r224962)
+++ user/adrian/if_ath_tx/sys/dev/ath/if_ath.c	Thu Aug 18 08:45:35 2011	(r224963)
@@ -1855,6 +1855,7 @@ _ath_getbuf_locked(struct ath_softc *sc)
 		    STAILQ_FIRST(&sc->sc_txbuf) == NULL ?
 			"out of xmit buffers" : "xmit buffer busy");
 	}
+	bf->bf_next = NULL;	/* XXX just to be sure */
 	return bf;
 }