virtio: pci: fix bug of virtio_pci_map_capability
The bar of the structure virtio_pci_cap is the index, and each base
address occupies 4 bytes, so it needs to be multiplied by 4.
This patch fixes a bug reported by Felix Yan
https://lists.denx.de/pipermail/u-boot/2022-August/492779.html
Signed-off-by: Xiang W <wxjstz@126.com>
Tested-by: Felix Yan <felixonmars@archlinux.org>
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 880a12c..cfde400 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -466,7 +466,7 @@
unsigned long mask =
PCI_REGION_TYPE | PCI_REGION_SYS_MEMORY | PCI_REGION_RO;
unsigned long flags = PCI_REGION_MEM;
- u8 *p = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0 + cap->bar, cap->offset,
+ u8 *p = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0 + 4 * cap->bar, cap->offset,
cap->length, mask, flags);
return (void __iomem *)p;