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-rw-r--r--src/devices/pci_ops.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/devices/pci_ops.c b/src/devices/pci_ops.c
index a8f09e229d..412b0c5b4b 100644
--- a/src/devices/pci_ops.c
+++ b/src/devices/pci_ops.c
@@ -28,6 +28,12 @@ static struct bus *get_pbus(device_t dev)
{
struct bus *pbus = dev->bus;
while(pbus && pbus->dev && !ops_pci_bus(pbus)) {
+ if (pbus == pbus->dev->bus) {
+ printk_alert("%s in endless loop looking for a parent "
+ "bus with ops_pci_bus for %s, breaking out\n",
+ __func__, dev_path(dev));
+ break;
+ }
pbus = pbus->dev->bus;
}
if (!pbus || !pbus->dev || !pbus->dev->ops || !pbus->dev->ops->ops_pci_bus) {