[PATCH v1 2/2] Bluetooth: btmtksdio: Do close if SDIO card removed without close

[Chris Lu]

To prevent Bluetooth SDIO card from being physically removed suddenly,
driver needs to ensure btmtksdio_close is called before btmtksdio_remove
to disable interrupts and txrx workqueue.

Signed-off-by: Chris Lu <chris.lu at mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 3c66e3ee9834..c16a3518b8ff 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1447,11 +1447,15 @@ static void btmtksdio_remove(struct sdio_func *func)
 	if (!bdev)
 		return;
 
+	hdev = bdev->hdev;
+
+	/* Make sure to call btmtksdio_close before removing sdio card */
+	if (test_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state))
+		btmtksdio_close(hdev);
+
 	/* Be consistent the state in btmtksdio_probe */
 	pm_runtime_get_noresume(bdev->dev);
 
-	hdev = bdev->hdev;
-
 	sdio_set_drvdata(func, NULL);
 	hci_unregister_dev(hdev);
 	hci_free_dev(hdev);
-- 
2.45.2