i2c: Use resource_size macro

This replace all instances in the i2c busses tree of
res->end - res->start + 1 with the handy macro resource_size(res)
from ioport.h (coming in from platform_device.h).

This was created with a simple
sed -i -e 's/\([a-z]*\)->end *- *[a-z]*->start *+ *1/resource_size(\1)/g'

Then manually replacing the PXA redefiniton of the same kind
of macro manually. Recompiled some ARM defconfigs I could find to
make a rough test so it shouldn't break anything, though I
couldn't see exactly which configs you need for all the drivers.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 5a4945d1dba4..c3869d94ad42 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -469,7 +469,7 @@ mv64xxx_i2c_map_regs(struct platform_device *pd,
         if (!r)
                 return -ENODEV;
 
-        size = r->end - r->start + 1;
+        size = resource_size(r);
 
         if (!request_mem_region(r->start, size, drv_data->adapter.name))
                 return -EBUSY;