[PATCH 6.1 156/321] Bluetooth: hci_conn: Check non NULL function before calling for HFP offload

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>

[ Upstream commit 132d0fd0b8418094c9e269e5bc33bf5b864f4a65 ]

For some controllers such as QCA2066, it does not need to send
HCI_Configure_Data_Path to configure non-HCI data transport path to support
HFP offload, their device drivers may set hdev->get_codec_config_data as
NULL, so Explicitly add this non NULL checking before calling the function.

Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/bluetooth/hci_conn.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index bac5a369d2bef..858c454e35e67 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -293,6 +293,13 @@ static int configure_datapath_sync(struct hci_dev *hdev, struct bt_codec *codec)
 	__u8 vnd_len, *vnd_data = NULL;
 	struct hci_op_configure_data_path *cmd = NULL;
 
+	if (!codec->data_path || !hdev->get_codec_config_data)
+		return 0;
+
+	/* Do not take me as error */
+	if (!hdev->get_codec_config_data)
+		return 0;
+
 	err = hdev->get_codec_config_data(hdev, ESCO_LINK, codec, &vnd_len,
 					  &vnd_data);
 	if (err < 0)
@@ -338,9 +345,7 @@ static int hci_enhanced_setup_sync(struct hci_dev *hdev, void *data)
 
 	bt_dev_dbg(hdev, "hcon %p", conn);
 
-	/* for offload use case, codec needs to configured before opening SCO */
-	if (conn->codec.data_path)
-		configure_datapath_sync(hdev, &conn->codec);
+	configure_datapath_sync(hdev, &conn->codec);
 
 	conn->state = BT_CONNECT;
 	conn->out = true;
-- 
2.43.0







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