From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> With the introduction of the power sequencing drivers that will be able to trigger the port rescan, we need to hold the rescan mutex during the initial pci_host_probe() too or the two could get in each other's way. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> --- drivers/pci/probe.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b7335be56008..957f7afee7ba 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3122,7 +3122,9 @@ int pci_host_probe(struct pci_host_bridge *bridge) struct pci_bus *bus, *child; int ret; + pci_lock_rescan_remove(); ret = pci_scan_root_bus_bridge(bridge); + pci_unlock_rescan_remove(); if (ret < 0) { dev_err(bridge->dev.parent, "Scanning root bridge failed"); return ret; -- 2.40.1