From da03cdfa7a3454a6d66d4ae873525ea2409baf06 Mon Sep 17 00:00:00 2001
From: Andrew Scull <ascull@google.com>
Date: Thu, 21 Apr 2022 16:11:00 +0000
Subject: [PATCH] virtio: pci: Fix discovery of device config length
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@google.com>
Reviewed-by: Bin Meng <bmeng.cn@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);
}
--
2.39.5