[PATCH 5.19 0529/1157] Bluetooth: mgmt: Fix refresh cached connection info

Greg Kroah-Hartman
2022-08-16T04:31:04Z

From: Zhengping Jiang <jiangzp@google.com>

[ Upstream commit d7b2fdfb53ea09382941c0a4950dc9b00d51d1c7 ]

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@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 2f91a8c2b678..cbdf0e2bc5ae 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -6820,11 +6820,14 @@ 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,
@@ -6836,9 +6839,6 @@ 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 */
--
2.35.1