From f39335453fe79f4e12e263e7c6387dc9fb86bfff Mon Sep 17 00:00:00 2001
From: Eric Van Hensbergen <ericvh@ericvh-desktop.(none)>
Date: Wed, 6 Feb 2008 19:25:04 -0600
Subject: [PATCH] 9p: add remove function to trans_virtio
Request from rusty:
Just cleaning up patches for 2.6.25 merge, and noticed that
net/9p/trans_virtio.c doesn't have a remove function. This will crash when
removing the module (console doesn't have one because it can't really be
removed).
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
---
net/9p/trans_virtio.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 7853c31bd690f..c957080966b44 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -385,6 +385,18 @@ static struct p9_trans *p9_virtio_create(const char *devname, char *args)
return trans;
}
+static void p9_virtio_remove(struct virtio_device *vdev)
+{
+ struct virtio_chan *chan = vdev->priv;
+
+ BUG_ON(chan->inuse);
+
+ if (chan->initialized) {
+ vdev->config->del_vq(chan->vq);
+ chan->initialized = false;
+ }
+}
+
#define VIRTIO_ID_9P 9
static struct virtio_device_id id_table[] = {
@@ -398,6 +410,7 @@ static struct virtio_driver p9_virtio_drv = {
.driver.owner = THIS_MODULE,
.id_table = id_table,
.probe = p9_virtio_probe,
+ .remove = p9_virtio_remove,
};
static struct p9_trans_module p9_virtio_trans = {
@@ -419,7 +432,13 @@ static int __init p9_virtio_init(void)
return register_virtio_driver(&p9_virtio_drv);
}
+static void __exit p9_virtio_cleanup(void)
+{
+ unregister_virtio_driver(&p9_virtio_drv);
+}
+
module_init(p9_virtio_init);
+module_exit(p9_virtio_cleanup);
MODULE_DEVICE_TABLE(virtio, id_table);
MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
--
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