From ec64213c4d482ee4d15b34511441eaecdd002adf Mon Sep 17 00:00:00 2001
From: Amit Shah <amit.shah@redhat.com>
Date: Fri, 19 Mar 2010 17:36:43 +0530
Subject: [PATCH] virtio: console: Generate a kobject CHANGE event on adding
'name' attribute
When the host lets us know what 'name' a port is assigned, we create the
sysfs 'name' attribute. Generate a 'change' event after this so that
udev wakes up and acts on the rules for virtio-ports (currently there's
only one rule that creates a symlink from the 'name' to the actual char
device).
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
drivers/char/virtio_console.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index f404ccfc9c20..67b474b4167c 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -947,11 +947,18 @@ static void handle_control_message(struct ports_device *portdev,
*/
err = sysfs_create_group(&port->dev->kobj,
&port_attribute_group);
- if (err)
+ if (err) {
dev_err(port->dev,
"Error %d creating sysfs device attributes\n",
err);
-
+ } else {
+ /*
+ * Generate a udev event so that appropriate
+ * symlinks can be created based on udev
+ * rules.
+ */
+ kobject_uevent(&port->dev->kobj, KOBJ_CHANGE);
+ }
break;
case VIRTIO_CONSOLE_PORT_REMOVE:
/*
--
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