spi: spi_txx9.c: use resource_size()

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/spi/spi_txx9.c b/drivers/spi/spi_txx9.c
index 96057de133ad..c166eb5ad3c5 100644
--- a/drivers/spi/spi_txx9.c
+++ b/drivers/spi/spi_txx9.c
@@ -376,12 +376,10 @@ static int __init txx9spi_probe(struct platform_device *dev)
         res = platform_get_resource(dev, IORESOURCE_MEM, 0);
         if (!res)
                 goto exit_busy;
-        if (!devm_request_mem_region(&dev->dev,
-                                     res->start, res->end - res->start + 1,
+        if (!devm_request_mem_region(&dev->dev, res->start, resource_size(res),
                                      "spi_txx9"))
                 goto exit_busy;
-        c->membase = devm_ioremap(&dev->dev,
-                                  res->start, res->end - res->start + 1);
+        c->membase = devm_ioremap(&dev->dev, res->start, resource_size(res));
         if (!c->membase)
                 goto exit_busy;