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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-04-15 17:45:10 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-05-01 15:50:08 +0300 |
| commit | e00f7bd221292b318d4d09c3f0c2c8af9b1e5edf (patch) | |
| tree | 86ca592852d959e65ee9038d10ddd8532eb92c02 /drivers/virtio/virtio_ring.c | |
| parent | d4f6e272f2600bc1295d195a52a9e8bb81656bc7 (diff) | |
| download | linux-e00f7bd221292b318d4d09c3f0c2c8af9b1e5edf.tar.bz2 | |
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>
Diffstat (limited to 'drivers/virtio/virtio_ring.c')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 5c802d47892c..ca6bfddaacad 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1006,7 +1006,7 @@ struct virtqueue *vring_create_virtqueue( const char *name) { struct virtqueue *vq; - void *queue; + void *queue = NULL; dma_addr_t dma_addr; size_t queue_size_in_bytes; struct vring vring; |