[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 5b764277f470..309ae1d5fa77 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -503,9 +503,9 @@ static int __of_address_to_resource(struct device_node *dev, u32 *addrp,
                 return -EINVAL;
         memset(r, 0, sizeof(struct resource));
         if (flags & IORESOURCE_IO) {
-                unsigned int port;
+                unsigned long port;
                 port = pci_address_to_pio(taddr);
-                if (port == (unsigned int)-1)
+                if (port == (unsigned long)-1)
                         return -EINVAL;
                 r->start = port;
                 r->end = port + size - 1;