[PATCH v3 02/18] virtio: pci: Fix discovery of device config length

[Andrew Scull]

The length of the device config was erroneously being taken from the
notify capability. Correct this by finding the length in the device
capability.

Fixes: 550435edf810 ("virtio: pci: Support non-legacy PCI transport device")
Signed-off-by: Andrew Scull <ascull at google.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---
 drivers/virtio/virtio_pci_modern.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index fd8a1f3fec..55d25cb81b 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -497,7 +497,7 @@ static int virtio_pci_probe(struct udevice *udev)
 	 */
 	device = virtio_pci_find_capability(udev, VIRTIO_PCI_CAP_DEVICE_CFG);
 	if (device) {
-		offset = notify + offsetof(struct virtio_pci_cap, length);
+		offset = device + offsetof(struct virtio_pci_cap, length);
 		dm_pci_read_config32(udev, offset, &priv->device_len);
 	}
 
-- 
2.36.0.rc2.479.g8af0fa9b8e-goog