| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 087/115] Bluetooth: delete a stray unlock | Date | Tue, 7 Jan 2020 21:54:57 +0100 |
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From: Dan Carpenter <dan.carpenter@oracle.com>
commit df66499a1fab340c167250a5743931dc50d5f0fa upstream.
We used to take a lock in amp_physical_cfm() but then we moved it to the caller function. Unfortunately the unlock on this error path was overlooked so it leads to a double unlock.
Fixes: a514b17fab51 ("Bluetooth: Refactor locking in amp_physical_cfm") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/bluetooth/l2cap_core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -4918,10 +4918,8 @@ void __l2cap_physical_cfm(struct l2cap_c BT_DBG("chan %p, result %d, local_amp_id %d, remote_amp_id %d", chan, result, local_amp_id, remote_amp_id); - if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) { - l2cap_chan_unlock(chan); + if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) return; - } if (chan->state != BT_CONNECTED) { l2cap_do_create(chan, result, local_amp_id, remote_amp_id);
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