From 04ab2749ea96a79f5eba3ca26d46f4283b5509a6 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Fri, 5 Dec 2014 13:36:04 +0200 Subject: [PATCH] Bluetooth: Convert Pair Device to use cmd_complete callback This patch converts the Pair Device mgmt command to use the new cmd_complete callback for pending mgmt commands. The already existing pairing_complete() function is exactly what's needed and doesn't need changing. In addition to getting the return parameters always right this patch actually fixes a reference counting bug and memory leak with the hci_conn that's attached to the pending mgmt command - something that would occur when powering off or unplugging the adapter while pairing is in progress. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/mgmt.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 0fc3d6914ef0..d3ee7285c303 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3129,7 +3129,7 @@ void mgmt_smp_complete(struct hci_conn *conn, bool complete) cmd = find_pairing(conn); if (cmd) - pairing_complete(cmd, status); + cmd->cmd_complete(cmd, status); } static void pairing_complete_cb(struct hci_conn *conn, u8 status) @@ -3142,7 +3142,7 @@ static void pairing_complete_cb(struct hci_conn *conn, u8 status) if (!cmd) BT_DBG("Unable to find a pending command"); else - pairing_complete(cmd, mgmt_status(status)); + cmd->cmd_complete(cmd, mgmt_status(status)); } static void le_pairing_complete_cb(struct hci_conn *conn, u8 status) @@ -3158,7 +3158,7 @@ static void le_pairing_complete_cb(struct hci_conn *conn, u8 status) if (!cmd) BT_DBG("Unable to find a pending command"); else - pairing_complete(cmd, mgmt_status(status)); + cmd->cmd_complete(cmd, mgmt_status(status)); } static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, @@ -3255,6 +3255,8 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, goto unlock; } + cmd->cmd_complete = pairing_complete; + /* For LE, just connecting isn't a proof that the pairing finished */ if (cp->addr.type == BDADDR_BREDR) { conn->connect_cfm_cb = pairing_complete_cb; -- GitLab