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[POWERPC] celleb: Fix PCI config space accesses to subordinate buses

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Checking whether bus->self is NULL is not enough to know "bus" is the
primary bus.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Ishizaki Kou 2007-05-09 17:36:40 +10:00 committed by Paul Mackerras
parent d1af5b4ea9
commit 0f6e74a3e0
1 changed files with 4 additions and 4 deletions
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8
arch/powerpc/platforms/celleb/scc_epci.c
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@ -133,13 +133,13 @@ static int celleb_epci_check_abort(struct pci_controller *hose,
}
static volatile void __iomem *celleb_epci_make_config_addr(
struct pci_bus *bus,
struct pci_controller *hose,
unsigned int devfn, int where)
{
volatile void __iomem *addr;
struct pci_bus *bus = hose->bus;
if (bus->self)
if (bus != hose->bus)
addr = celleb_epci_get_epci_cfg(hose) +
(((bus->number & 0xff) << 16)
| ((devfn & 0xff) << 8)
@ -193,7 +193,7 @@ static int celleb_epci_read_config(struct pci_bus *bus,
} else {
clear_and_disable_master_abort_interrupt(hose);
addr = celleb_epci_make_config_addr(hose, devfn, where);
addr = celleb_epci_make_config_addr(bus, hose, devfn, where);
switch (size) {
case 1:
@ -257,7 +257,7 @@ static int celleb_epci_write_config(struct pci_bus *bus,
} else {
clear_and_disable_master_abort_interrupt(hose);
addr = celleb_epci_make_config_addr(hose, devfn, where);
addr = celleb_epci_make_config_addr(bus, hose, devfn, where);
switch (size) {
case 1: