diff options
| -rw-r--r-- | drivers/extcon/extcon.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index d27cd9f88f86..d3a32b806499 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1224,19 +1224,14 @@ int extcon_dev_register(struct extcon_dev *edev) edev->dev.type = &edev->extcon_dev_type; } - ret = device_register(&edev->dev); - if (ret) { - put_device(&edev->dev); - goto err_dev; - } - spin_lock_init(&edev->lock); - edev->nh = devm_kcalloc(&edev->dev, edev->max_supported, - sizeof(*edev->nh), GFP_KERNEL); - if (!edev->nh) { - ret = -ENOMEM; - device_unregister(&edev->dev); - goto err_dev; + if (edev->max_supported) { + edev->nh = kcalloc(edev->max_supported, sizeof(*edev->nh), + GFP_KERNEL); + if (!edev->nh) { + ret = -ENOMEM; + goto err_alloc_nh; + } } for (index = 0; index < edev->max_supported; index++) @@ -1247,6 +1242,12 @@ int extcon_dev_register(struct extcon_dev *edev) dev_set_drvdata(&edev->dev, edev); edev->state = 0; + ret = device_register(&edev->dev); + if (ret) { + put_device(&edev->dev); + goto err_dev; + } + mutex_lock(&extcon_dev_list_lock); list_add(&edev->entry, &extcon_dev_list); mutex_unlock(&extcon_dev_list_lock); @@ -1255,6 +1256,9 @@ int extcon_dev_register(struct extcon_dev *edev) err_dev: if (edev->max_supported) + kfree(edev->nh); +err_alloc_nh: + if (edev->max_supported) kfree(edev->extcon_dev_type.groups); err_alloc_groups: if (edev->max_supported && edev->mutually_exclusive) { @@ -1314,6 +1318,7 @@ void extcon_dev_unregister(struct extcon_dev *edev) if (edev->max_supported) { kfree(edev->extcon_dev_type.groups); kfree(edev->cables); + kfree(edev->nh); } put_device(&edev->dev); |