From 3b3a015ad4ab1ad0cf707ccbaef1dbe965993a4a Mon Sep 17 00:00:00 2001
From: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Date: Fri, 23 Oct 2015 04:06:23 +0200
Subject: merged more uncritical stuff from 3.2.72

---
 drivers/xen/xenbus/xenbus_probe_backend.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

(limited to 'drivers/xen/xenbus/xenbus_probe_backend.c')

diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c
index 6cf467b..c3c7cd1 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -42,6 +42,7 @@
 #include <linux/fcntl.h>
 #include <linux/mm.h>
 #include <linux/notifier.h>
+#include <linux/export.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -104,8 +105,9 @@ static int xenbus_uevent_backend(struct device *dev,
 
 	xdev = to_xenbus_device(dev);
 	bus = container_of(xdev->dev.bus, struct xen_bus_type, bus);
-	if (xdev == NULL)
-		return -ENODEV;
+
+	if (add_uevent_var(env, "MODALIAS=xen-backend:%s", xdev->devicetype))
+		return -ENOMEM;
 
 	/* stuff we want to pass to /sbin/hotplug */
 	if (add_uevent_var(env, "XENBUS_TYPE=%s", xdev->devicetype))
@@ -183,10 +185,6 @@ static void frontend_changed(struct xenbus_watch *watch,
 	xenbus_otherend_changed(watch, vec, len, 0);
 }
 
-static struct device_attribute xenbus_backend_dev_attrs[] = {
-	__ATTR_NULL
-};
-
 static struct xen_bus_type xenbus_backend = {
 	.root = "backend",
 	.levels = 3,		/* backend/type/<frontend>/<id> */
@@ -200,7 +198,7 @@ static struct xen_bus_type xenbus_backend = {
 		.probe		= xenbus_dev_probe,
 		.remove		= xenbus_dev_remove,
 		.shutdown	= xenbus_dev_shutdown,
-		.dev_attrs	= xenbus_backend_dev_attrs,
+		.dev_attrs	= xenbus_dev_attrs,
 	},
 };
 
-- 
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