1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
index e9390d747bfc..1fb2a6ea328c 100644
--- a/drivers/spi/spi_mpc8xxx.c
+++ b/drivers/spi/spi_mpc8xxx.c
@@ -1013,7 +1013,7 @@ mpc8xxx_spi_probe(struct device *dev, struct resource *mem, unsigned int irq)
 
         init_completion(&mpc8xxx_spi->done);
 
-        mpc8xxx_spi->base = ioremap(mem->start, mem->end - mem->start + 1);
+        mpc8xxx_spi->base = ioremap(mem->start, resource_size(mem));
         if (mpc8xxx_spi->base == NULL) {
                 ret = -ENOMEM;
                 goto err_ioremap;