diff options
| -rw-r--r-- | drivers/i2c/i2c-dev.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index 2ce0833..567fb05 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); |