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Bluetooth: Forward errors from hci_register_dev

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We need to catch errors when calling hci_add_sysfs() and return them to
the caller to avoid kernel oopses on device_add() failure.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
David Herrmann 2011-10-08 14:58:49 +02:00 committed by Gustavo F. Padovan
parent ce242970f0
commit 33ca954daf
1 changed files with 12 additions and 6 deletions
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18
net/bluetooth/hci_core.c
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@ -1426,7 +1426,7 @@ int hci_add_adv_entry(struct hci_dev *hdev,
int hci_register_dev(struct hci_dev *hdev)
{
struct list_head *head = &hci_dev_list, *p;
int i, id = 0;
int i, id = 0, error;
BT_DBG("%p name %s bus %d owner %p", hdev, hdev->name,
hdev->bus, hdev->owner);
@ -1503,10 +1503,14 @@ int hci_register_dev(struct hci_dev *hdev)
write_unlock_bh(&hci_dev_list_lock);
hdev->workqueue = create_singlethread_workqueue(hdev->name);
if (!hdev->workqueue)
goto nomem;
if (!hdev->workqueue) {
error = -ENOMEM;
goto err;
}
hci_add_sysfs(hdev);
error = hci_add_sysfs(hdev);
if (error < 0)
goto err_wqueue;
hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
@ -1525,12 +1529,14 @@ int hci_register_dev(struct hci_dev *hdev)
return id;
nomem:
err_wqueue:
destroy_workqueue(hdev->workqueue);
err:
write_lock_bh(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock_bh(&hci_dev_list_lock);
return -ENOMEM;
return error;
}
EXPORT_SYMBOL(hci_register_dev);