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| author | Tiwei Bie <tiwei.bie@intel.com> | 2018-02-23 14:41:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-15 12:56:50 +0300 |
| commit | 4e5d6d3cc5e480293db4dc6fc60fe4ab3834c28e (patch) | |
| tree | 27e7358e4c961e44f1f92a2bb879bb20b960b1e5 | |
| parent | 49de2e7b6670ca93639053687701b2c5ca886120 (diff) | |
| download | linux-4e5d6d3cc5e480293db4dc6fc60fe4ab3834c28e.tar.xz | |
virtio_ring: fix num_free handling in error case
commit e82df670235138575b37ff0ec24412a471efd97f upstream.
The vq->vq.num_free hasn't been changed when error happens,
so it shouldn't be changed when handling the error.
Fixes: 780bc7903a32 ("virtio_ring: Support DMA APIs")
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index eb30f3e09a47..71458f493cf8 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -428,8 +428,6 @@ unmap_release: i = virtio16_to_cpu(_vq->vdev, vq->vring.desc[i].next); } - vq->vq.num_free += total_sg; - if (indirect) kfree(desc); |