Some devices need to be initialized really early and can't wait for driver core or drivers to be functional. These devices are typically initialized without creating a struct device for their device nodes. If a supplier ends up being one of these devices, skip trying to add device links to them. Signed-off-by: Saravana Kannan <saravanak@xxxxxxxxxx> --- drivers/of/property.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index f16f85597ccc..21c9d251318a 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1038,6 +1038,7 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np, struct device *sup_dev; int ret = 0; struct device_node *tmp_np = sup_np; + int is_populated; of_node_get(sup_np); /* @@ -1062,9 +1063,10 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np, return -EINVAL; } sup_dev = get_dev_from_fwnode(&sup_np->fwnode); + is_populated = of_node_check_flag(sup_np, OF_POPULATED); of_node_put(sup_np); if (!sup_dev) - return -EAGAIN; + return is_populated ? 0 : -EAGAIN; if (!device_link_add(dev, sup_dev, dl_flags)) ret = -EAGAIN; put_device(sup_dev); -- 2.24.0.rc0.303.g954a862665-goog
