[PATCH v2 1/2] Bluetooth: btmtksdio: Check function enabled before doing close

[Chris Lu <chris.lu@mediatek.com>]

Check BTMTKSDIO_FUNC_ENABLED flag before doing close to prevent
btmtksdio_close been called twice.

Fixes: c4233afb9a ("Bluetooth: btmtksdio: Prevent enabling interrupts after IRQ handler removal")
Signed-off-by: Chris Lu <chris.lu@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 566c136e83bf..3c66e3ee9834 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -723,6 +723,10 @@ static int btmtksdio_close(struct hci_dev *hdev)
 {
 	struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
 
+	/* Skip btmtksdio_close if BTMTKSDIO_FUNC_ENABLED isn't set */
+	if (!test_bit(BTMTKSDIO_FUNC_ENABLED, &bdev->tx_state))
+		return 0;
+
 	sdio_claim_host(bdev->func);
 
 	/* Disable interrupt */
-- 
2.45.2