commit 75fd9edc1054a1fa1d1411adec368dadf68e764e
author Michael S. Tsirkin <mst@redhat.com> Tue Jul 19 13:19:18 2011 +0300
committer Michael S. Tsirkin <mst@redhat.com> Tue Jul 19 13:28:34 2011 +0300
tree d1a54e4bfb7a3d000c2a70465e54dc155bb6b475
parent 2723feaa8ec64f677f644c9189ed87d83f5559c1

vhost: fix zcopy reference counting

Fix get/put refcount imbalance with zero copy,
which caused qemu to hang forever on guest driver unload.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/vhost/vhost.c

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 46822c0..c16d225 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1578,7 +1578,6 @@
 	if (!ubufs)
 		return ERR_PTR(-ENOMEM);
 	kref_init(&ubufs->kref);
-	kref_get(&ubufs->kref);
 	init_waitqueue_head(&ubufs->wait);
 	ubufs->vq = vq;
 	return ubufs;