From d3a0fe6b0988241c64ef4f6a1045423cc79a612a Mon Sep 17 00:00:00 2001
From: Zijun Hu <zijuhu@codeaurora.org>
Date: Fri, 29 May 2020 23:58:56 +0800
Subject: [PATCH] Bluetooth: btmtkuart: Use serdev_device_write_buf() instead of serdev_device_write()
Git-commit: d3a0fe6b0988241c64ef4f6a1045423cc79a612a
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430

serdev_device_write() is not appropriate at here because
serdev_device_write_wakeup() is not used to release completion hold
by the former at @write_wakeup member of struct serdev_device_ops.

Fix by using serdev_device_write_buf() instead of serdev_device_write().

Signed-off-by: Zijun Hu <zijuhu@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/bluetooth/btmtkuart.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index 8a81fbca5c9d..6c40bc75fb5b 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -695,8 +695,7 @@ static int btmtkuart_change_baudrate(struct hci_dev *hdev)
 
 	/* Send a dummy byte 0xff to activate the new baudrate */
 	param = 0xff;
-	err = serdev_device_write(bdev->serdev, &param, sizeof(param),
-				  MAX_SCHEDULE_TIMEOUT);
+	err = serdev_device_write_buf(bdev->serdev, &param, sizeof(param));
 	if (err < 0 || err < sizeof(param))
 		return err;
 
-- 
2.16.4