We support only one virtio_console device at a time. If multiple are
found, error out if one is already initialized.
Signed-off-by: Amit Shah <amit.shah@xxxxxxxxxx>
---
drivers/char/virtio_console.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index e5284a9..21039b8 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -202,6 +202,10 @@ static int __devinit virtcons_probe(struct virtio_device *dev)
struct virtqueue *vqs[2];
int err;
+ if (vdev) {
+ pr_err("Multiple virtio-console devices not supported yet\n");
+ return -EEXIST;
+ }
vdev = dev;
/* This is the scratch page we use to receive console input */
--
1.6.2.5
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