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virtio: pci: Fix discovery of device config length

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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>
This commit is contained in:
Andrew Scull 2022-04-21 16:11:00 +00:00 committed by Tom Rini
parent 30471d5351
commit da03cdfa7a
1 changed files with 1 additions and 1 deletions
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2
drivers/virtio/virtio_pci_modern.c
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@ -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);
}