This is a note to let you know that I've just added the patch titled Bluetooth: 6LoWPAN: add missing hci_dev_put() in get_l2cap_conn() to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bluetooth-6lowpan-add-missing-hci_dev_put-in-get_l2c.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4f4296d54d0c31005e4d44fd2b3a506f9ca9a88e Author: Wang ShaoBo <bobo.shaobowang@xxxxxxxxxx> Date: Wed Nov 9 17:37:26 2022 +0800 Bluetooth: 6LoWPAN: add missing hci_dev_put() in get_l2cap_conn() [ Upstream commit 747da1308bdd5021409974f9180f0d8ece53d142 ] hci_get_route() takes reference, we should use hci_dev_put() to release it when not need anymore. Fixes: 6b8d4a6a0314 ("Bluetooth: 6LoWPAN: Use connected oriented channel instead of fixed one") Signed-off-by: Wang ShaoBo <bobo.shaobowang@xxxxxxxxxx> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 52fb6d6d6d58..bccad8c048da 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -1002,6 +1002,7 @@ static int get_l2cap_conn(char *buf, bdaddr_t *addr, u8 *addr_type, hci_dev_lock(hdev); hcon = hci_conn_hash_lookup_le(hdev, addr, *addr_type); hci_dev_unlock(hdev); + hci_dev_put(hdev); if (!hcon) return -ENOENT;