[PATCH 148/379][SRU][OEM-5.6] Bluetooth: hci_qca: Refactor error handling in qca_suspend()

You-Sheng Yang vicamo.yang at canonical.com
Wed Dec 23 08:48:01 UTC 2020


From: Matthias Kaehlcke <mka at chromium.org>

BugLink: https://bugs.launchpad.net/bugs/1879633

If waiting for IBS sleep times out jump to the error handler, this is
easier to read than multiple 'if' branches and a fall through to the
error handler.

Signed-off-by: Matthias Kaehlcke <mka at chromium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit at chromium.org>
Signed-off-by: Marcel Holtmann <marcel at holtmann.org>
(cherry picked from commit 4da385f742d485fe3135a2711299cbf28ea24bc9)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/bluetooth/hci_qca.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index d073cc20e402..28c34a15e029 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -2107,18 +2107,16 @@ static int __maybe_unused qca_suspend(struct device *dev)
 	/* Wait for HCI_IBS_SLEEP_IND sent by device to indicate its Tx is going
 	 * to sleep, so that the packet does not wake the system later.
 	 */
-
 	ret = wait_event_interruptible_timeout(qca->suspend_wait_q,
 			qca->rx_ibs_state == HCI_IBS_RX_ASLEEP,
 			msecs_to_jiffies(IBS_BTSOC_TX_IDLE_TIMEOUT_MS));
-
-	if (ret > 0) {
-		qca_wq_serial_tx_clock_vote_off(&qca->ws_tx_vote_off);
-		return 0;
+	if (ret == 0) {
+		ret = -ETIMEDOUT;
+		goto error;
 	}
 
-	if (ret == 0)
-		ret = -ETIMEDOUT;
+	qca_wq_serial_tx_clock_vote_off(&qca->ws_tx_vote_off);
+	return 0;
 
 error:
 	clear_bit(QCA_SUSPENDING, &qca->flags);
-- 
2.29.2




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