diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/nct1008.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/misc/nct1008.c b/drivers/misc/nct1008.c index af8660915a9a..0a56485d5ae6 100644 --- a/drivers/misc/nct1008.c +++ b/drivers/misc/nct1008.c @@ -434,12 +434,24 @@ static const struct file_operations debug_fops = { static int __init nct1008_debuginit(struct nct1008_data *nct) { - int err; - err = debugfs_create_file("nct1008", S_IRUGO, NULL, - nct, &debug_fops); - if (err < 0) - pr_err("Error: %s debugfs not supported, error=%d\n", - __func__, err); + int err = 0; + struct dentry *d; + d = debugfs_create_file("nct1008", S_IRUGO, NULL, + (void *)nct, &debug_fops); + if ((!d) || IS_ERR(d)) { + dev_err(&nct->client->dev, "Error: %s debugfs_create_file" + " returned an error\n", __func__); + err = -ENOENT; + goto end; + } + if (d == ERR_PTR(-ENODEV)) { + dev_err(&nct->client->dev, "Error: %s debugfs not supported " + "error=-ENODEV\n", __func__); + err = -ENODEV; + } else { + nct->dent = d; + } +end: return err; } #else @@ -974,6 +986,8 @@ static int __devexit nct1008_remove(struct i2c_client *client) { struct nct1008_data *data = i2c_get_clientdata(client); + if (data->dent) + debugfs_remove(data->dent); free_irq(data->client->irq, data); cancel_work_sync(&data->work); sysfs_remove_group(&client->dev.kobj, &nct1008_attr_group); |