Runtime pm ops is not aware the sdio_func status that is probably
being disabled by btmtksdio_close. Thus, we are only able to access the
sdio_func for the runtime pm operations only when the sdio_func is
available.

Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth")
Co-developed-by: Mark-yw Chen <redacted>
Signed-off-by: Mark-yw Chen <redacted>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
drivers/bluetooth/btmtksdio.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 4f3412ad8fca..4c46c62e4623 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c

@@ -1037,6 +1037,9 @@ static int btmtksdio_runtime_suspend(struct device *dev)

	if (!bdev)
		return 0;

+	if (!test_bit(HCI_RUNNING, &bdev->hdev->flags))
+		return 0;
+
	sdio_claim_host(bdev->func);

	sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);

@@ -1064,6 +1067,9 @@ static int btmtksdio_runtime_resume(struct device *dev)

	if (!bdev)
		return 0;

+	if (!test_bit(HCI_RUNNING, &bdev->hdev->flags))
+		return 0;
+
	sdio_claim_host(bdev->func);

	sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);