Call virtio_device_ready() to make this driver work after commit
b4ec69d7e09 ("virtio: harden vring IRQ"), since the driver uses the
virtqueues in the probe function. (The virtio core sets the device
ready when probe returns.)
Fixes: 8b4ec69d7e09 ("virtio: harden vring IRQ")
Signed-off-by: Vincent Whitchurch <vincent.whitchu...@axis.com>
---
arch/um/drivers/virt-pci.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c
index 5c092a9153ea..027847023184 100644
--- a/arch/um/drivers/virt-pci.c
+++ b/arch/um/drivers/virt-pci.c
@@ -544,6 +544,8 @@ static int um_pci_init_vqs(struct um_pci_device *dev)
dev->cmd_vq = vqs[0];
dev->irq_vq = vqs[1];
+ virtio_device_ready(dev->vdev);
+
for (i = 0; i < NUM_IRQ_MSGS; i++) {
void *msg = kzalloc(MAX_IRQ_MSG_SIZE, GFP_KERNEL);
@@ -587,7 +589,7 @@ static int um_pci_virtio_probe(struct virtio_device *vdev)
dev->irq = irq_alloc_desc(numa_node_id());
if (dev->irq < 0) {
err = dev->irq;
- goto error;
+ goto err_reset;
}
um_pci_devices[free].dev = dev;
vdev->priv = dev;
@@ -604,6 +606,9 @@ static int um_pci_virtio_probe(struct virtio_device *vdev)
um_pci_rescan();
return 0;
+err_reset:
+ virtio_reset_device(vdev);
+ vdev->config->del_vqs(vdev);
error:
mutex_unlock(&um_pci_mtx);
kfree(dev);
--
2.34.1
_______________________________________________
linux-um mailing list
linux-um@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-um
