[PATCH] powerpc: Fix warning in pci_64.c

Fix a warning due to unused result from device_create_file
in arch/powerpc/kernel/pci_64.c

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

 arch/powerpc/kernel/pci_64.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-cell/arch/powerpc/kernel/pci_64.c
===================================================================

--- linux-cell.orig/arch/powerpc/kernel/pci_64.c	2007-05-15 14:14:15.000000000 +1000
+++ linux-cell/arch/powerpc/kernel/pci_64.c	2007-05-15 14:14:54.000000000 +1000

@@ -878,7 +878,8 @@ static DEVICE_ATTR(devspec, S_IRUGO, pci
 
 void pcibios_add_platform_entries(struct pci_dev *pdev)
 {
-	device_create_file(&pdev->dev, &dev_attr_devspec);
+	int rc = device_create_file(&pdev->dev, &dev_attr_devspec);
+	WARN_ON(rc != 0);
 }
 
 #define ISA_SPACE_MASK 0x1