Commit 2dd9072e authored by Pali Rohár's avatar Pali Rohár Committed by Lorenzo Pieralisi
Browse files

PCI: of: Zero max-link-speed value is invalid 

Interpret zero value of max-link-speed property as invalid,
as the device tree bindings documentation specifies.

Link: https://lore.kernel.org/r/20200430080625.26070-4-pali@kernel.org


Tested-by: default avatarTomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: default avatarPali Rohár <pali@kernel.org>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarThomas Petazzoni <thomas.petazzoni@bootlin.com>
parent 90c6cb4a

drivers/pci/of.c

+1 −1
Original line number Diff line number Diff line
@@ -592,7 +592,7 @@ int of_pci_get_max_link_speed(struct device_node *node) 
	u32 max_link_speed;



	if (of_property_read_u32(node, "max-link-speed", &max_link_speed) ||

	    max_link_speed > 4)

	    max_link_speed == 0 || max_link_speed > 4)

		return -EINVAL;



	return max_link_speed;