diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2017-01-19 10:43:53 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-17 06:41:57 +0200 |
| commit | ae36f6a65af6f4eaca01cc5b68d8ecb266dbcc17 (patch) | |
| tree | dfdb28e7d630782feaa5c9a39dfcab7270360360 /drivers/vhost | |
| parent | b13b3b706a9dc03dd1a1c31f8268cd5193c1858c (diff) | |
vhost/vsock: handle vhost_vq_init_access() error
[ Upstream commit 0516ffd88fa0d006ee80389ce14a9ca5ae45e845 ]
Propagate the error when vhost_vq_init_access() fails and set
vq->private_data to NULL.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vsock.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index a504e2e003da..e3fad302b4fb 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -368,6 +368,7 @@ static void vhost_vsock_handle_rx_kick(struct vhost_work *work) static int vhost_vsock_start(struct vhost_vsock *vsock) { + struct vhost_virtqueue *vq; size_t i; int ret; @@ -378,19 +379,20 @@ static int vhost_vsock_start(struct vhost_vsock *vsock) goto err; for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) { - struct vhost_virtqueue *vq = &vsock->vqs[i]; + vq = &vsock->vqs[i]; mutex_lock(&vq->mutex); if (!vhost_vq_access_ok(vq)) { ret = -EFAULT; - mutex_unlock(&vq->mutex); goto err_vq; } if (!vq->private_data) { vq->private_data = vsock; - vhost_vq_init_access(vq); + ret = vhost_vq_init_access(vq); + if (ret) + goto err_vq; } mutex_unlock(&vq->mutex); @@ -400,8 +402,11 @@ static int vhost_vsock_start(struct vhost_vsock *vsock) return 0; err_vq: + vq->private_data = NULL; + mutex_unlock(&vq->mutex); + for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) { - struct vhost_virtqueue *vq = &vsock->vqs[i]; + vq = &vsock->vqs[i]; mutex_lock(&vq->mutex); vq->private_data = NULL; |