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i2c: isch: Use devm_request_region()

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Use devm_request_region() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Jingoo Han 2013-12-18 10:48:07 +09:00 committed by Wolfram Sang
parent cf9557d1f4
commit 34d7ffa064
1 changed files with 2 additions and 5 deletions
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7
drivers/i2c/busses/i2c-isch.c
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@ -275,7 +275,8 @@ static int smbus_sch_probe(struct platform_device *dev)
if (!res)
return -EBUSY;
if (!request_region(res->start, resource_size(res), dev->name)) {
if (!devm_request_region(&dev->dev, res->start, resource_size(res),
dev->name)) {
dev_err(&dev->dev, "SMBus region 0x%x already in use!\n",
sch_smba);
return -EBUSY;
@ -294,7 +295,6 @@ static int smbus_sch_probe(struct platform_device *dev)
retval = i2c_add_adapter(&sch_adapter);
if (retval) {
dev_err(&dev->dev, "Couldn't register adapter!\n");
release_region(res->start, resource_size(res));
sch_smba = 0;
}
@ -303,11 +303,8 @@ static int smbus_sch_probe(struct platform_device *dev)
static int smbus_sch_remove(struct platform_device *pdev)
{
struct resource *res;
if (sch_smba) {
i2c_del_adapter(&sch_adapter);
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
release_region(res->start, resource_size(res));
sch_smba = 0;
}