[PATCH 1/4] Bluetooth: qca: Restore flow control after a failed power pulse

[Michael McAllister]

qca_send_power_pulse() disables hardware flow control before writing to
the UART. If the write fails, it returns without restoring flow control.

Restore flow control on the error path as on success.

Fixes: f9558270b85c ("Bluetooth: hci_qca: use wait_until_sent() for power pulses")
Signed-off-by: Michael McAllister <me@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/bluetooth/hci_qca.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 7089e9b63..8705c4543 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1424,6 +1424,7 @@ static int qca_send_power_pulse(struct hci_uart *hu, bool on)
 	ret = serdev_device_write_buf(hu->serdev, &cmd, sizeof(cmd));
 	if (ret < 0) {
 		bt_dev_err(hu->hdev, "failed to send power pulse %02x", cmd);
+		hci_uart_set_flow_control(hu, false);
 		return ret;
 	}