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Bluetooth: Check inquiry status before sending one 

There is a possibility where HCI_INQUIRY flag is set but we still
send HCI_OP_INQUIRY anyway.

Such a case can be reproduced by connecting to an LE device while
active scanning. When the device is discovered, we initiate a
connection, stop LE Scan, and send Discovery MGMT with status
disabled, but we don't cancel the inquiry.

Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Archie Pusaka 2021-04-01 11:11:33 +08:00 committed by Marcel Holtmann
parent 149b3f13b4
commit 06752d1678
1 changed files with 3 additions and 0 deletions
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3
net/bluetooth/hci_request.c
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@ -2950,6 +2950,9 @@ static int bredr_inquiry(struct hci_request *req, unsigned long opt)
const u8 liac[3] = { 0x00, 0x8b, 0x9e };
struct hci_cp_inquiry cp;
if (test_bit(HCI_INQUIRY, &req->hdev->flags))
return 0;
bt_dev_dbg(req->hdev, "");
hci_dev_lock(req->hdev);