From 4a5e6b854d15e5eabfaa31d7e6621d889bf939ed Mon Sep 17 00:00:00 2001
From: "Pedro F. Giffuni" <pfg@FreeBSD.org>
Date: Mon, 20 Apr 2015 16:31:27 +0000
Subject: [PATCH] g_uncompress_taste: prevent a double free.

Found by:	Clang Static Analyzer
MFC after:	1 week
---
 sys/geom/uncompress/g_uncompress.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/geom/uncompress/g_uncompress.c b/sys/geom/uncompress/g_uncompress.c
index 5bc8d30bc1de..d8193711b5e7 100644
--- a/sys/geom/uncompress/g_uncompress.c
+++ b/sys/geom/uncompress/g_uncompress.c
@@ -571,6 +571,7 @@ g_uncompress_taste(struct g_class *mp, struct g_provider *pp, int flags)
 		    (buf+sizeof(struct cloop_header)))[i]);
 	}
 	free(buf, M_GEOM);
+	buf = NULL;
 	DPRINTF(("%s: done reading offsets\n", gp->name));
 	mtx_init(&sc->last_mtx, "geom_uncompress cache", NULL, MTX_DEF);
 	sc->last_blk = -1;