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H A Dvirtio_ring.cdiff e00f7bd221292b318d4d09c3f0c2c8af9b1e5edf Fri Apr 15 09:45:10 CDT 2016 Dan Carpenter <dan.carpenter@oracle.com> virtio: Silence uninitialized variable warning

Smatch complains that we might not initialize "queue". The issue is
callers like setup_vq() from virtio_pci_modern.c where "num" could be
something like 2 and "vring_align" is 64. In that case, vring_size() is
less than PAGE_SIZE. It won't happen in real life, but we're getting
the value of "num" from a register so it's not really possible to tell
what value it holds with static analysis.

Let's just silence the warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>