diff options
| author | Ingo Molnar <mingo@kernel.org> | 2022-03-15 10:28:12 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-03-15 10:28:12 +0100 |
| commit | ccdbf33c2349a0a867f46dde5f94b0715f6fa341 (patch) | |
| tree | 87a4e147e484ed5ebd9e2b4defad7bdcd36b6b37 /drivers/vhost/vhost.c | |
| parent | ccacfe56d7ecdd2922256b87e9ea46f13bb03b55 (diff) | |
| parent | 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 (diff) | |
Merge tag 'v5.17-rc8' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/vhost/vhost.c')
| -rw-r--r-- | drivers/vhost/vhost.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 59edb5a1ffe2..082380c03a3e 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1170,6 +1170,11 @@ ssize_t vhost_chr_write_iter(struct vhost_dev *dev, goto done; } + if (msg.size == 0) { + ret = -EINVAL; + goto done; + } + if (dev->msg_handler) ret = dev->msg_handler(dev, &msg); else @@ -1981,7 +1986,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq) return 0; } -static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event) +static int vhost_update_avail_event(struct vhost_virtqueue *vq) { if (vhost_put_avail_event(vq)) return -EFAULT; @@ -2527,7 +2532,7 @@ bool vhost_enable_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq) return false; } } else { - r = vhost_update_avail_event(vq, vq->avail_idx); + r = vhost_update_avail_event(vq); if (r) { vq_err(vq, "Failed to update avail event index at %p: %d\n", vhost_avail_event(vq), r); |