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authorMark Chen <mark-yw.chen@mediatek.com>2021-12-06 20:33:42 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-01-27 13:03:31 +0300
commitd41946e82718c3a4023ada6583ce026c21159021 (patch)
treee5e917cf6beeaf1b5e5b747485c8eaa7907384d1 /drivers/bluetooth
parent006157d575d146255963ffbc81855929accb5993 (diff)
downloadlinux-d41946e82718c3a4023ada6583ce026c21159021.tar.xz
Bluetooth: btusb: Handle download_firmware failure cases
[ Upstream commit 00c0ee9850b7b0cb7c40b8daba806ae2245e59d4 ] For Mediatek chipset, it can not enabled if there are something wrong in btmtk_setup_firmware_79xx(). Thus, the process must be terminated and returned error code. Fixes: fc342c4dc4087 ("Bluetooth: btusb: Add protocol support for MediaTek MT7921U USB devices") Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Mark Chen <mark-yw.chen@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btusb.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fa44828562d3..c99e1e994cd4 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2856,6 +2856,10 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
"mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
dev_id & 0xffff, (fw_version & 0xff) + 1);
err = btusb_mtk_setup_firmware_79xx(hdev, fw_bin_name);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
+ return err;
+ }
/* It's Device EndPoint Reset Option Register */
btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);