From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: [PATCH] xenbus: fix possible crash in
	xenbus_uevent_backend
Date: Mon, 18 Jul 2011 14:40:59 +0200
Message-ID: <20110718124059.GA7893@aepfle.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Return-path: <xen-devel-bounces@lists.xensource.com>
Content-Disposition: inline
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org


Fix possible NULL pointer crash in xenbus_uevent_backend().
The variable to check for should probably be bus.

Signed-off-by: Olaf Hering <olaf@aepfle.de>

Index: linux-3.0-rc7-xen-kexec/drivers/xen/xenbus/xenbus_probe_backend.c
===================================================================
--- linux-3.0-rc7-xen-kexec.orig/drivers/xen/xenbus/xenbus_probe_backend.c
+++ linux-3.0-rc7-xen-kexec/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -104,7 +104,7 @@ static int xenbus_uevent_backend(struct
 
 	xdev = to_xenbus_device(dev);
 	bus = container_of(xdev->dev.bus, struct xen_bus_type, bus);
-	if (xdev == NULL)
+	if (bus == NULL)
 		return -ENODEV;
 
 	/* stuff we want to pass to /sbin/hotplug */
Index: linux-3.0-rc7-xen-kexec/include/linux/compiler.h