| From | Pali Rohár <> | Subject | [PATCH v4 03/12] PCI: of: Zero max-link-speed value is invalid | Date | Thu, 30 Apr 2020 10:06:16 +0200 |
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Interpret zero value of max-link-speed property as invalid, as the device tree bindings documentation specifies.
Signed-off-by: Pali Rohár <pali@kernel.org> --- drivers/pci/of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/of.c b/drivers/pci/of.c index 81ceeaa6f1d5..27839cd2459f 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -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; -- 2.20.1
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