From 2dd9072e8fb0af4af47c912244f6c16fc57d4fbc Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Thu, 30 Apr 2020 10:06:16 +0200 Subject: PCI: of: Zero max-link-speed value is invalid MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Tomasz Maciej Nowak Signed-off-by: Pali Rohár Signed-off-by: Lorenzo Pieralisi Acked-by: Rob Herring Acked-by: Thomas Petazzoni --- drivers/pci/of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci/of.c') 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; -- cgit v1.2.3