Input: xilinx_ps2 - use resource_size

Use the resource_size inline function instead of manually calculating
the resource size.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 78c64fb8a4b0..8298e1f68234 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -270,7 +270,7 @@ static int __devinit xps2_of_probe(struct of_device *ofdev,
         drvdata->irq = r_irq.start;
 
         phys_addr = r_mem.start;
-        remap_size = r_mem.end - r_mem.start + 1;
+        remap_size = resource_size(&r_mem);
         if (!request_mem_region(phys_addr, remap_size, DRIVER_NAME)) {
                 dev_err(dev, "Couldn't lock memory region at 0x%08llX\n",
                         (unsigned long long)phys_addr);
@@ -344,7 +344,7 @@ static int __devexit xps2_of_remove(struct of_device *of_dev)
         if (of_address_to_resource(of_dev->node, 0, &r_mem))
                 dev_err(dev, "invalid address\n");
         else
-                release_mem_region(r_mem.start, r_mem.end - r_mem.start + 1);
+                release_mem_region(r_mem.start, resource_size(&r_mem));
 
         kfree(drvdata);