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Diffstat (limited to 'drivers/i2c/busses/i2c-at91.c')
-rw-r--r--drivers/i2c/busses/i2c-at91.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 67d9dc5b351..06e1ecb4919 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -200,10 +200,10 @@ static int __devinit at91_i2c_probe(struct platform_device *pdev)
if (!res)
return -ENXIO;
- if (!request_mem_region(res->start, res->end - res->start + 1, "at91_i2c"))
+ if (!request_mem_region(res->start, resource_size(res), "at91_i2c"))
return -EBUSY;
- twi_base = ioremap(res->start, res->end - res->start + 1);
+ twi_base = ioremap(res->start, resource_size(res));
if (!twi_base) {
rc = -ENOMEM;
goto fail0;
@@ -252,7 +252,7 @@ fail2:
fail1:
iounmap(twi_base);
fail0:
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
return rc;
}
@@ -268,7 +268,7 @@ static int __devexit at91_i2c_remove(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
iounmap(twi_base);
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
clk_disable(twi_clk); /* disable peripheral clock */
clk_put(twi_clk);