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Date: Mon, 13 Jun 2022 14:43:27 -0700 From: Zhengping Jiang <jiangzp@...gle.com> To: linux-bluetooth@...r.kernel.org, marcel@...tmann.org Cc: chromeos-bluetooth-upstreaming@...omium.org, Zhengping Jiang <jiangzp@...gle.com>, Brian Gix <brian.gix@...el.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Johan Hedberg <johan.hedberg@...il.com>, Luiz Augusto von Dentz <luiz.dentz@...il.com>, Paolo Abeni <pabeni@...hat.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: [kernel PATCH v1 1/1] Bluetooth: mgmt: Fix refresh cached connection info Set the connection data before calling get_conn_info_sync, so it can be verified the connection is still connected, before refreshing cached values. Fixes: 47db6b42991e6 ("Bluetooth: hci_sync: Convert MGMT_OP_GET_CONN_INFO") Signed-off-by: Zhengping Jiang <jiangzp@...gle.com> --- Changes in v1: - Set connection data before calling hci_cmd_sync_queue net/bluetooth/mgmt.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 74937a8346488..cfbea6fa04335 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -6828,11 +6828,14 @@ static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data, cmd = mgmt_pending_new(sk, MGMT_OP_GET_CONN_INFO, hdev, data, len); - if (!cmd) + if (!cmd) { err = -ENOMEM; - else + } else { + hci_conn_hold(conn); + cmd->user_data = hci_conn_get(conn); err = hci_cmd_sync_queue(hdev, get_conn_info_sync, cmd, get_conn_info_complete); + } if (err < 0) { mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO, @@ -6844,9 +6847,6 @@ static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data, goto unlock; } - hci_conn_hold(conn); - cmd->user_data = hci_conn_get(conn); - conn->conn_info_timestamp = jiffies; } else { /* Cache is valid, just reply with values cached in hci_conn */ -- 2.36.1.476.g0c4daa206d-goog
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