aboutsummaryrefslogtreecommitdiff
path: root/drivers/i2c/i2c-dev.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/i2c-dev.c')
-rw-r--r--drivers/i2c/i2c-dev.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 2ce08339129..567fb05aecc 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -406,6 +406,7 @@ static struct class *i2c_dev_class;
static int i2cdev_attach_adapter(struct i2c_adapter *adap)
{
struct i2c_dev *i2c_dev;
+ int res;
i2c_dev = get_free_i2c_dev(adap);
if (IS_ERR(i2c_dev))
@@ -419,14 +420,20 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
MKDEV(I2C_MAJOR, adap->nr),
&adap->dev, "i2c-%d",
adap->nr);
- if (!i2c_dev->class_dev)
+ if (!i2c_dev->class_dev) {
+ res = -ENODEV;
goto error;
- class_device_create_file(i2c_dev->class_dev, &class_device_attr_name);
+ }
+ res = class_device_create_file(i2c_dev->class_dev, &class_device_attr_name);
+ if (res)
+ goto error_destroy;
return 0;
+error_destroy:
+ class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
error:
return_i2c_dev(i2c_dev);
kfree(i2c_dev);
- return -ENODEV;
+ return res;
}
static int i2cdev_detach_adapter(struct i2c_adapter *adap)
@@ -437,6 +444,7 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
if (!i2c_dev)
return -ENODEV;
+ class_device_remove_file(i2c_dev->class_dev, &class_device_attr_name);
return_i2c_dev(i2c_dev);
class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
kfree(i2c_dev);