[PATCH v2] xen/pci: prevent infinite loop for faulty SR-IOV cards

[Frediano Ziglio]

If a SR-IOV card presents an I/O space inside a BAR the
code will continue to loop on the same card.
This is due to the missing increment of the cycle variable.

Fixes: a1a6d59862f4 ("pci: split code to size BARs from pci_add_device")
Signed-off-by: Frediano Ziglio <frediano.zig...@cloud.com>
---
Changes since v1:
- add Fixes comment
---
 xen/drivers/passthrough/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c
index 3edcfa8a04..52c22fa50c 100644
--- a/xen/drivers/passthrough/pci.c
+++ b/xen/drivers/passthrough/pci.c
@@ -746,6 +746,7 @@ int pci_add_device(u16 seg, u8 bus, u8 devfn,
                     printk(XENLOG_WARNING
                            "SR-IOV device %pp with vf BAR%u in IO space\n",
                            &pdev->sbdf, i);
+                    ++i;
                     continue;
                 }
                 ret = pci_size_mem_bar(pdev->sbdf, idx, NULL,
-- 
2.43.0