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| author | Michael S. Tsirkin <mst@redhat.com> | 2011-07-19 12:19:18 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2011-07-19 12:28:34 +0200 |
| commit | 75fd9edc1054a1fa1d1411adec368dadf68e764e (patch) | |
| tree | d1a54e4bfb7a3d000c2a70465e54dc155bb6b475 /drivers/vhost | |
| parent | vhost: set log when updating used flags or avail event (diff) | |
| download | linux-75fd9edc1054a1fa1d1411adec368dadf68e764e.tar.xz linux-75fd9edc1054a1fa1d1411adec368dadf68e764e.zip | |
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>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vhost.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 46822c0d9f7f..c16d22545868 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1578,7 +1578,6 @@ struct vhost_ubuf_ref *vhost_ubuf_alloc(struct vhost_virtqueue *vq, if (!ubufs) return ERR_PTR(-ENOMEM); kref_init(&ubufs->kref); - kref_get(&ubufs->kref); init_waitqueue_head(&ubufs->wait); ubufs->vq = vq; return ubufs; |