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Bluetooth: Fix setting local name to the existing value 

If user space attempts to set the local name to the same value that's
already set we should simply return a direct command complete for this
mgmt command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Johan Hedberg 2013-03-15 17:07:03 -05:00 committed by Gustavo Padovan
parent 3f985050fa
commit b3f2ca9446
1 changed files with 11 additions and 0 deletions
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11
net/bluetooth/mgmt.c
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@ -2408,6 +2408,17 @@ static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
hci_dev_lock(hdev);
/* If the old values are the same as the new ones just return a
* direct command complete event.
*/
if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
!memcmp(hdev->short_name, cp->short_name,
sizeof(hdev->short_name))) {
err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
data, len);
goto failed;
}
memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
if (!hdev_is_powered(hdev)) {