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path: root/drivers/i2c/i2c-dev.c
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Diffstat (limited to 'drivers/i2c/i2c-dev.c')
-rw-r--r--drivers/i2c/i2c-dev.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 5ec2261574e..80b47e8ce03 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -102,8 +102,8 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev)
kfree(i2c_dev);
}
-static ssize_t show_adapter_name(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(dev->devt));
@@ -111,7 +111,13 @@ static ssize_t show_adapter_name(struct device *dev,
return -ENODEV;
return sprintf(buf, "%s\n", i2c_dev->adap->name);
}
-static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
+static DEVICE_ATTR_RO(name);
+
+static struct attribute *i2c_attrs[] = {
+ &dev_attr_name.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(i2c);
/* ------------------------------------------------------------------------- */
@@ -148,7 +154,7 @@ static ssize_t i2cdev_read(struct file *file, char __user *buf, size_t count,
return -ENOMEM;
pr_debug("i2c-dev: i2c-%d reading %zu bytes.\n",
- iminor(file->f_path.dentry->d_inode), count);
+ iminor(file_inode(file)), count);
ret = i2c_master_recv(client, tmp, count);
if (ret >= 0)
@@ -172,7 +178,7 @@ static ssize_t i2cdev_write(struct file *file, const char __user *buf,
return PTR_ERR(tmp);
pr_debug("i2c-dev: i2c-%d writing %zu bytes.\n",
- iminor(file->f_path.dentry->d_inode), count);
+ iminor(file_inode(file)), count);
ret = i2c_master_send(client, tmp, count);
kfree(tmp);
@@ -562,15 +568,10 @@ static int i2cdev_attach_adapter(struct device *dev, void *dummy)
res = PTR_ERR(i2c_dev->dev);
goto error;
}
- res = device_create_file(i2c_dev->dev, &dev_attr_name);
- if (res)
- goto error_destroy;
pr_debug("i2c-dev: adapter [%s] registered as minor %d\n",
adap->name, adap->nr);
return 0;
-error_destroy:
- device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
error:
return_i2c_dev(i2c_dev);
return res;
@@ -589,7 +590,6 @@ static int i2cdev_detach_adapter(struct device *dev, void *dummy)
if (!i2c_dev) /* attach_adapter must have failed */
return 0;
- device_remove_file(i2c_dev->dev, &dev_attr_name);
return_i2c_dev(i2c_dev);
device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
@@ -637,6 +637,7 @@ static int __init i2c_dev_init(void)
res = PTR_ERR(i2c_dev_class);
goto out_unreg_chrdev;
}
+ i2c_dev_class->dev_groups = i2c_groups;
/* Keep track of adapters which will be added or removed later */
res = bus_register_notifier(&i2c_bus_type, &i2cdev_notifier);