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path: root/drivers/i2c/busses/i2c-parport-light.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-parport-light.c')
-rw-r--r--drivers/i2c/busses/i2c-parport-light.c39
1 files changed, 8 insertions, 31 deletions
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c
index c6faf9bdad1..b2b8380f660 100644
--- a/drivers/i2c/busses/i2c-parport-light.c
+++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -123,11 +123,6 @@ static struct i2c_adapter parport_adapter = {
static int __devinit i2c_parport_probe(struct platform_device *pdev)
{
int err;
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!request_region(res->start, res->end - res->start + 1, DRVNAME))
- return -EBUSY;
/* Reset hardware to a sane state (SCL and SDA high) */
parport_setsda(NULL, 1);
@@ -138,29 +133,19 @@ static int __devinit i2c_parport_probe(struct platform_device *pdev)
parport_adapter.dev.parent = &pdev->dev;
err = i2c_bit_add_bus(&parport_adapter);
- if (err) {
+ if (err)
dev_err(&pdev->dev, "Unable to register with I2C\n");
- goto exit_region;
- }
- return 0;
-
-exit_region:
- release_region(res->start, res->end - res->start + 1);
return err;
}
static int __devexit i2c_parport_remove(struct platform_device *pdev)
{
- struct resource *res;
-
i2c_del_adapter(&parport_adapter);
/* Un-init if needed (power off...) */
if (adapter_parm[type].init.val)
line_set(0, &adapter_parm[type].init);
- res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- release_region(res->start, res->end - res->start + 1);
return 0;
}
@@ -175,12 +160,6 @@ static struct platform_driver i2c_parport_driver = {
static int __init i2c_parport_device_add(u16 address)
{
- struct resource res = {
- .start = address,
- .end = address + 2,
- .name = DRVNAME,
- .flags = IORESOURCE_IO,
- };
int err;
pdev = platform_device_alloc(DRVNAME, -1);
@@ -190,13 +169,6 @@ static int __init i2c_parport_device_add(u16 address)
goto exit;
}
- err = platform_device_add_resources(pdev, &res, 1);
- if (err) {
- printk(KERN_ERR DRVNAME ": Device resource addition failed "
- "(%d)\n", err);
- goto exit_device_put;
- }
-
err = platform_device_add(pdev);
if (err) {
printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
@@ -231,13 +203,16 @@ static int __init i2c_parport_init(void)
base = DEFAULT_BASE;
}
+ if (!request_region(base, 3, DRVNAME))
+ return -EBUSY;
+
if (!adapter_parm[type].getscl.val)
parport_algo_data.getscl = NULL;
/* Sets global pdev as a side effect */
err = i2c_parport_device_add(base);
if (err)
- goto exit;
+ goto exit_release;
err = platform_driver_register(&i2c_parport_driver);
if (err)
@@ -247,7 +222,8 @@ static int __init i2c_parport_init(void)
exit_device:
platform_device_unregister(pdev);
-exit:
+exit_release:
+ release_region(base, 3);
return err;
}
@@ -255,6 +231,7 @@ static void __exit i2c_parport_exit(void)
{
platform_driver_unregister(&i2c_parport_driver);
platform_device_unregister(pdev);
+ release_region(base, 3);
}
MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");