Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations"

This reverts commit b0c3af5ef0d7b38eb1ba522becd47123ac9736d2.

The driver has been rewritten in ARM tree.

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/arm/mach-u300/gpio.c b/arch/arm/mach-u300/gpio.c
index 94837a4e146b..d92790140fe5 100644
--- a/arch/arm/mach-u300/gpio.c
+++ b/arch/arm/mach-u300/gpio.c
@@ -581,7 +581,8 @@ static int __init gpio_probe(struct platform_device *pdev)
         if (!memres)
                 goto err_no_resource;
 
-        if (!request_mem_region(memres->start, resource_size(memres), "GPIO Controller")) {
+        if (request_mem_region(memres->start, memres->end - memres->start, "GPIO Controller")
+            == NULL) {
                 err = -ENODEV;
                 goto err_no_ioregion;
         }
@@ -639,7 +640,7 @@ static int __init gpio_probe(struct platform_device *pdev)
                 free_irq(gpio_ports[i].irq, &gpio_ports[i]);
         iounmap(virtbase);
  err_no_ioremap:
-        release_mem_region(memres->start, resource_size(memres));
+        release_mem_region(memres->start, memres->end - memres->start);
  err_no_ioregion:
  err_no_resource:
         clk_disable(clk);
@@ -659,7 +660,7 @@ static int __exit gpio_remove(struct platform_device *pdev)
         for (i = 0 ; i < U300_GPIO_NUM_PORTS; i++)
                 free_irq(gpio_ports[i].irq, &gpio_ports[i]);
         iounmap(virtbase);
-        release_mem_region(memres->start, resource_size(memres));
+        release_mem_region(memres->start, memres->end - memres->start);
         clk_disable(clk);
         clk_put(clk);
         return 0;