1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 92e78333c47c..419a77239bd7 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -349,7 +349,7 @@ static int __devinit fsl_of_msi_probe(struct platform_device *dev)
                 goto error_out;
         }
 
-        msi->msi_regs = ioremap(res.start, res.end - res.start + 1);
+        msi->msi_regs = ioremap(res.start, resource_size(&res));
         if (!msi->msi_regs) {
                 dev_err(&dev->dev, "ioremap problem failed\n");
                 goto error_out;