From d96b543c6f3b78b6440b68b5a5bbface553eff28 Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Tue, 1 Oct 2024 09:21:25 +0200 Subject: [PATCH] Bluetooth: hci_conn: Reduce hci_conn_drop() calls in two functions An hci_conn_drop() call was immediately used after a null pointer check for an hci_conn_link() call in two function implementations. Thus call such a function only once instead directly before the checks. This issue was transformed by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Luiz Augusto von Dentz --- net/bluetooth/hci_conn.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index c4c74b82ed211..50e65b2f54ee6 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -2224,13 +2224,9 @@ struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, conn->iso_qos.bcast.big); if (parent && parent != conn) { link = hci_conn_link(parent, conn); - if (!link) { - hci_conn_drop(conn); - return ERR_PTR(-ENOLINK); - } - - /* Link takes the refcount */ hci_conn_drop(conn); + if (!link) + return ERR_PTR(-ENOLINK); } return conn; @@ -2320,15 +2316,12 @@ struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, } link = hci_conn_link(le, cis); + hci_conn_drop(cis); if (!link) { hci_conn_drop(le); - hci_conn_drop(cis); return ERR_PTR(-ENOLINK); } - /* Link takes the refcount */ - hci_conn_drop(cis); - cis->state = BT_CONNECT; hci_le_create_cis_pending(hdev); -- 2.39.5