PCI: fix truncation of resource size to 32 bits

_pci_assign_resource() took an int "size" argument, which meant that
sizes larger than 4GB were truncated.  Change type to resource_size_t.

[bhelgaas: changelog]
Signed-off-by: Nikhil P Rao <nikhil.rao@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index eea85da..be76eba 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -206,7 +206,8 @@
 	return ret;
 }
 
-static int _pci_assign_resource(struct pci_dev *dev, int resno, int size, resource_size_t min_align)
+static int _pci_assign_resource(struct pci_dev *dev, int resno,
+				resource_size_t size, resource_size_t min_align)
 {
 	struct resource *res = dev->resource + resno;
 	struct pci_bus *bus;