In btmtksdio_shutdown(), pm_runtime_get_sync() is called at the
beginning of the function. However, if sending the WMT function
control command fails later, the driver returns early.
It bypasses the corresponding pm_runtime_put_noidle() and
pm_runtime_disable() calls, leaking the PM usage counter and leaving PM
runtime enabled indefinitely.
Fall through to execute the PM runtime cleanup block even if WMT errors.
Fixes: 7f3c563c575e ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth")
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
---
drivers/bluetooth/btmtksdio.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index fe4ca9395aa3..b7db15268904 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1249,10 +1249,8 @@ static int btmtksdio_shutdown(struct hci_dev *hdev)
wmt_params.status = NULL;
err = mtk_hci_wmt_sync(hdev, &wmt_params);
- if (err < 0) {
+ if (err < 0)
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
- return err;
- }
ignore_wmt_cmd:
pm_runtime_put_noidle(bdev->dev);
--
2.55.0.1007.g17ff1f9808-goog