Simon Glass 20349781a3 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>

2020-07-17 14:32:24 +08:00

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