pci: Avoid a crash in device_is_on_pci_bus()
This function cannot currently be called on the root node. Add a check
for this as well as a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/dm/device.h b/include/dm/device.h
index f5738a0..953706c 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -764,7 +764,7 @@
*/
static inline bool device_is_on_pci_bus(const struct udevice *dev)
{
- return device_get_uclass_id(dev->parent) == UCLASS_PCI;
+ return dev->parent && device_get_uclass_id(dev->parent) == UCLASS_PCI;
}
/**