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Diffstat (limited to 'drivers/virtio/virtio.c')
| -rw-r--r-- | drivers/virtio/virtio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 59918dfc3cb7..0f3c2bb7bf35 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -2,6 +2,9 @@ #include <linux/spinlock.h> #include <linux/virtio_config.h> +/* Unique numbering for virtio devices. */ +static unsigned int dev_index; + static ssize_t device_show(struct device *_d, struct device_attribute *attr, char *buf) { @@ -166,6 +169,9 @@ int register_virtio_device(struct virtio_device *dev) int err; dev->dev.bus = &virtio_bus; + + /* Assign a unique device index and hence name. */ + dev->index = dev_index++; sprintf(dev->dev.bus_id, "virtio%u", dev->index); /* We always start by resetting the device, in case a previous |