Commit 470195f8 authored by Christian König's avatar Christian König Committed by Bjorn Helgaas
Browse files

x86/PCI: Fix infinite loop in search for 64bit BAR placement 



Break the loop if we can't find some address space for a 64bit BAR.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 7912af5c

arch/x86/pci/fixup.c

+6 −1
Original line number Diff line number Diff line
@@ -696,8 +696,13 @@ static void pci_amd_enable_64bit_bar(struct pci_dev *dev) 
	res->end = 0xfd00000000ull - 1;



	/* Just grab the free area behind system memory for this */

	while ((conflict = request_resource_conflict(&iomem_resource, res)))

	while ((conflict = request_resource_conflict(&iomem_resource, res))) {

		if (conflict->end >= res->end) {

			kfree(res);

			return;

		}

		res->start = conflict->end + 1;

	}



	dev_info(&dev->dev, "adding root bus resource %pR\n", res);