From f550804ab92e37a08d2622522a0f11252a2158ea Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Mon, 18 Jan 2010 19:14:59 +0530 Subject: virtio: console: We support only one device at a time 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 Signed-off-by: Rusty Russell --- drivers/char/virtio_console.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 791be4e91d1..bfc0abf825e 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -204,6 +204,11 @@ static int __devinit virtcons_probe(struct virtio_device *dev) struct virtqueue *vqs[2]; int err; + if (vdev) { + dev_warn(&vdev->dev, + "Multiple virtio-console devices not supported yet\n"); + return -EEXIST; + } vdev = dev; /* This is the scratch page we use to receive console input */ -- cgit v1.2.3