From c3cbd4125e70c2d82c008df6314c9bf866e583ae Mon Sep 17 00:00:00 2001
From: Jung-uk Kim <jkim@FreeBSD.org>
Date: Tue, 6 Jul 2010 18:05:05 +0000
Subject: [PATCH] Fix a possible null pointer dereference.  A patch for -STABLE
 was

Submitted by:	Yamagi Burmeister (lists at yamagi dot org)
---
 sys/dev/fb/vesa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/dev/fb/vesa.c b/sys/dev/fb/vesa.c
index 25a60e59bab..a039aee8baf 100644
--- a/sys/dev/fb/vesa.c
+++ b/sys/dev/fb/vesa.c
@@ -536,6 +536,8 @@ vesa_bios_save_restore(int code, void *p, size_t size)
 		return (1);
 
 	buf = x86bios_alloc(&offs, size, M_NOWAIT);
+	if (buf == NULL)
+		return (1);
 
 	x86bios_init_regs(&regs);
 	regs.R_AX = 0x4f04;