diff options
| author | Linmao Li <lilinmao@kylinos.cn> | 2026-01-09 10:05:38 +0800 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2026-01-29 13:33:15 -0500 |
| commit | 312b09bbe9832799ff11c051060f78c9667d604a (patch) | |
| tree | f799241f886f7418f25498f0873b52d445bf4af0 | |
| parent | 97eb023cd1616b06584dac77a16cb9ef3abf4491 (diff) | |
Bluetooth: btusb: Reject autosuspend if discovery is active
If USB autosuspend occurs while discovery is active, the ongoing
HCI operation may not complete successfully. On some devices, this
can leave discovery.state stuck in DISCOVERY_FINDING.
Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
| -rw-r--r-- | drivers/bluetooth/btusb.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index b16eb9d70dcf..1e01f8c855c9 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -4472,10 +4472,11 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message) BT_DBG("intf %p", intf); - /* Don't auto-suspend if there are connections; external suspend calls - * shall never fail. + /* Don't auto-suspend if there are connections or discovery in + * progress; external suspend calls shall never fail. */ - if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev)) + if (PMSG_IS_AUTO(message) && + (hci_conn_count(data->hdev) || hci_discovery_active(data->hdev))) return -EBUSY; if (data->suspend_count++) |