mfd: asic3: use resource_size macro instead of local variable
This should make the code a little bit easier to read.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index ebe8893..d5dd0df 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -623,7 +623,6 @@
struct asic3 *asic;
struct resource *mem;
unsigned long clksel;
- int map_size;
int ret = 0;
asic = kzalloc(sizeof(struct asic3), GFP_KERNEL);
@@ -643,8 +642,7 @@
goto out_free;
}
- map_size = mem->end - mem->start + 1;
- asic->mapping = ioremap(mem->start, map_size);
+ asic->mapping = ioremap(mem->start, resource_size(mem));
if (!asic->mapping) {
ret = -ENOMEM;
dev_err(asic->dev, "Couldn't ioremap\n");
@@ -654,7 +652,7 @@
asic->irq_base = pdata->irq_base;
/* calculate bus shift from mem resource */
- asic->bus_shift = 2 - (map_size >> 12);
+ asic->bus_shift = 2 - (resource_size(mem) >> 12);
clksel = 0;
asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), clksel);