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virtio: console: We support only one device at a time
author
Amit Shah
<amit.shah@redhat.com>
Mon, 18 Jan 2010 13:44:59 +0000
(19:14 +0530)
committer
Rusty Russell
<rusty@rustcorp.com.au>
Wed, 24 Feb 2010 03:52:33 +0000
(14:22 +1030)
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@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
drivers/char/virtio_console.c
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diff --git
a/drivers/char/virtio_console.c
b/drivers/char/virtio_console.c
index
791be4e
..
bfc0abf
100644
(file)
--- 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 */