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

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Convert off-by-1 r->end - r->start to resource_size(r)

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Joe Perches 2011-03-23 12:55:37 -07:00 committed by Jiri Kosina
parent 99172a2f9e
commit b0c3af5ef0
1 changed files with 3 additions and 4 deletions
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7
arch/arm/mach-u300/gpio.c
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@ -581,8 +581,7 @@ static int __init gpio_probe(struct platform_device *pdev)
if (!memres)
goto err_no_resource;
if (request_mem_region(memres->start, memres->end - memres->start, "GPIO Controller")
== NULL) {
if (!request_mem_region(memres->start, resource_size(memres), "GPIO Controller")) {
err = -ENODEV;
goto err_no_ioregion;
}
@ -640,7 +639,7 @@ 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, memres->end - memres->start);
release_mem_region(memres->start, resource_size(memres));
err_no_ioregion:
err_no_resource:
clk_disable(clk);
@ -660,7 +659,7 @@ 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, memres->end - memres->start);
release_mem_region(memres->start, resource_size(memres));
clk_disable(clk);
clk_put(clk);
return 0;