virtio: enhance id_matching for virtio drivers

This patch allows a virtio driver to use VIRTIO_DEV_ANY_ID for the
device id. This will be used by a test module that can be bound to
any virtio device.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 22642a255d3..3a43ebf83a4 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -58,7 +58,7 @@ static struct device_attribute virtio_dev_attrs[] = {
 static inline int virtio_id_match(const struct virtio_device *dev,
                                   const struct virtio_device_id *id)
 {
-        if (id->device != dev->id.device)
+        if (id->device != dev->id.device && id->device != VIRTIO_DEV_ANY_ID)
                 return 0;
 
         return id->vendor == VIRTIO_DEV_ANY_ID || id->vendor == dev->id.vendor;