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Commit 7a27db23 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Bjorn Helgaas
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PCI: rcar: Verify that mem_res is 64K-aligned 



The lower 16 bits of the address, which is managed by mem_res, need to be
zero.  Check the address to verify this.

Signed-off-by: default avatarNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent ecd06305

drivers/pci/host/pci-rcar-gen2.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -301,6 +301,9 @@ static int rcar_pci_probe(struct platform_device *pdev) 
	if (!mem_res || !mem_res->start)

	if (!mem_res || !mem_res->start)

		return -ENODEV;

		return -ENODEV;





	if (mem_res->start & 0xFFFF)

		return -EINVAL;



	priv = devm_kzalloc(&pdev->dev,

	priv = devm_kzalloc(&pdev->dev,

			    sizeof(struct rcar_pci_priv), GFP_KERNEL);

			    sizeof(struct rcar_pci_priv), GFP_KERNEL);

	if (!priv)

	if (!priv)