1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 80350299a6ea..2e344a5581ae 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -538,7 +538,8 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
         struct pci_bus_region region;
         unsigned long io_mask;
         u8 io_base_lo, io_limit_lo;
-        u32 l, io_upper16;
+        u16 l;
+        u32 io_upper16;
 
         io_mask = PCI_IO_RANGE_MASK;
         if (bridge->io_window_1k)
@@ -548,11 +549,10 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
         res = bus->resource[0];
         pcibios_resource_to_bus(bridge, &region, res);
         if (res->flags & IORESOURCE_IO) {
-                pci_read_config_dword(bridge, PCI_IO_BASE, &l);
-                l &= 0xffff0000;
+                pci_read_config_word(bridge, PCI_IO_BASE, &l);
                 io_base_lo = (region.start >> 8) & io_mask;
                 io_limit_lo = (region.end >> 8) & io_mask;
-                l |= ((u32) io_limit_lo << 8) | io_base_lo;
+                l = ((u16) io_limit_lo << 8) | io_base_lo;
                 /* Set up upper 16 bits of I/O base/limit. */
                 io_upper16 = (region.end & 0xffff0000) | (region.start >> 16);
                 dev_info(&bridge->dev, "  bridge window %pR\n", res);
@@ -564,7 +564,7 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
         /* Temporarily disable the I/O range before updating PCI_IO_BASE. */
         pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff);
         /* Update lower 16 bits of I/O base/limit. */
-        pci_write_config_dword(bridge, PCI_IO_BASE, l);
+        pci_write_config_word(bridge, PCI_IO_BASE, l);
         /* Update upper 16 bits of I/O base/limit. */
         pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, io_upper16);
 }