Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one errors
and actually fixes one in mailbox.c.

Signed-off-by: Tobias Klauser <[email protected]>
---
 arch/arm/mach-omap2/gpmc.c    |    2 +-
 arch/arm/mach-omap2/mailbox.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 004da69..67af370 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -366,7 +366,7 @@ int gpmc_cs_request(int cs, unsigned long size, unsigned 
long *base)
        if (r < 0)
                goto out;
 
-       gpmc_cs_enable_mem(cs, res->start, res->end - res->start + 1);
+       gpmc_cs_enable_mem(cs, res->start, resource_size(res));
        *base = res->start;
        gpmc_cs_set_reserved(cs, 1);
 out:
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 46e1f2e..5ba3aa6 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -300,7 +300,7 @@ static int __devinit omap2_mbox_probe(struct 
platform_device *pdev)
                dev_err(&pdev->dev, "invalid mem resource\n");
                return -ENODEV;
        }
-       mbox_base = ioremap(res->start, res->end - res->start);
+       mbox_base = ioremap(res->start, resource_size(res));
        if (!mbox_base)
                return -ENOMEM;
 
-- 
1.6.3.3

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