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Bluetooth: ISO: don't try to remove CIG if there are bound CIS left

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Consider existing BOUND & CONNECT state CIS to block CIG removal.
Otherwise, under suitable timing conditions we may attempt to remove CIG
while Create CIS is pending, which fails.

Fixes: 26afbd826e ("Bluetooth: Add initial implementation of CIS connections")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Pauli Virtanen 2023-06-01 09:34:44 +03:00 committed by Luiz Augusto von Dentz
parent 02c5ea5246
commit 6c242c64a0
1 changed files with 2 additions and 0 deletions
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2
net/bluetooth/hci_conn.c
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@ -972,6 +972,8 @@ static void cis_cleanup(struct hci_conn *conn)
/* Check if ISO connection is a CIS and remove CIG if there are
* no other connections using it.
*/
hci_conn_hash_list_state(hdev, find_cis, ISO_LINK, BT_BOUND, &d);
hci_conn_hash_list_state(hdev, find_cis, ISO_LINK, BT_CONNECT, &d);
hci_conn_hash_list_state(hdev, find_cis, ISO_LINK, BT_CONNECTED, &d);
if (d.count)
return;