From 5c8a6f63b2283d12c77e308008ca0689fa58895e Mon Sep 17 00:00:00 2001
From: Maxim Sobolev <sobomax@FreeBSD.org>
Date: Tue, 29 Nov 2005 03:03:34 +0000
Subject: [PATCH] Check value returned by g_read_data(9), otherwise we can end
 in panic(9) if read error happens.

MFC after:	1 week
---
 sys/geom/label/g_label_ntfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/geom/label/g_label_ntfs.c b/sys/geom/label/g_label_ntfs.c
index a16cca224516..d3722e85a0e1 100644
--- a/sys/geom/label/g_label_ntfs.c
+++ b/sys/geom/label/g_label_ntfs.c
@@ -74,6 +74,9 @@ g_label_ntfs_taste(struct g_consumer *cp, char *label, size_t size)
 		goto done;
 
 	filerecp = g_read_data(cp, voloff, recsize, &error);
+	if (filerecp == NULL)
+		goto done;
+
 	fr = (struct filerec *)filerecp;
 
 	if(fr->fr_fixup.fh_magic != NTFS_FILEMAGIC){