Commit 72dc5601 authored Apr 29, 2014 by Bjorn Helgaas

PCI: Don't convert BAR address to resource if dma_addr_t is too small



If dma_addr_t is too small to represent the BAR value,
pcibios_bus_to_resource() will fail, so just remember the BAR size directly
in the resource.  The resource is already marked UNSET, so we know the
address isn't valid anyway.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

parent d1a313e4

drivers/pci/probe.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -258,9 +258,10 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
		pci_write_config_dword(dev, pos, 0);
		pci_write_config_dword(dev, pos + 4, 0);
		res->flags \|= IORESOURCE_UNSET;
		region.start = 0;
		region.end = sz64;
		res->start = 0;
		res->end = sz64;
		bar_disabled = true;
		goto out;
		} else {
		region.start = l64;
		region.end = l64 + sz64;