diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-12-15 15:00:57 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 15:05:56 +1100 |
| commit | f2c4583a381c584c8c025048071a120cc9562ded (patch) | |
| tree | 53d6a1d30a3be72f021738c97853cff55a800070 /arch/ppc | |
| parent | a04c8780fd234aeeba5e87f7e37beffd05ef21ae (diff) | |
[PATCH] powerpc: pci_address_to_pio fix
This fixes pci_address_to_pio() to return an unsigned long (to be safe)
and fixes a bug in the implementation that caused it to return a bogus
IO port number
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc')
| -rw-r--r-- | arch/ppc/kernel/pci.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 8de320308e8..c8b48f17169 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1811,7 +1811,7 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr) EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); -unsigned int pci_address_to_pio(phys_addr_t address) +unsigned long pci_address_to_pio(phys_addr_t address) { struct pci_controller* hose = hose_head; @@ -1819,9 +1819,11 @@ unsigned int pci_address_to_pio(phys_addr_t address) unsigned int size = hose->io_resource.end - hose->io_resource.start + 1; if (address >= hose->io_base_phys && - address < (hose->io_base_phys + size)) - return (unsigned int)hose->io_base_virt + - (address - hose->io_base_phys); + address < (hose->io_base_phys + size)) { + unsigned long base = + (unsigned long)hose->io_base_virt - _IO_BASE; + return base + (address - hose->io_base_phys); + } return (unsigned int)-1; } |