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Bluetooth: btmtk: add status check in mt79xx firmware setup

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To prevent abnormal controller states, it is necessary to check
status in another part of the mt79xx firmware setup. During this
process, receiving the 'BTMTK_WMT_PATCH_PROGRESS' status is unexpected.
If this occurs, it should be treated as an error, and driver must be
prevented from continuing execution.

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Chris Lu
2026-02-03 14:25:09 +08:00
committed by Luiz Augusto von Dentz
parent 54f1f020e9
commit b27a306e9f
1 changed files with 8 additions and 2 deletions
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10
drivers/bluetooth/btmtk.c
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@@ -213,7 +213,6 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
fw_ptr += section_offset;
wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
wmt_params.status = NULL;
while (dl_size > 0) {
dlen = min_t(int, 250, dl_size);
@@ -231,7 +230,14 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
wmt_params.data = fw_ptr;
err = wmt_cmd_sync(hdev, &wmt_params);
if (err < 0) {
/* Status BTMTK_WMT_PATCH_PROGRESS indicates firmware is
* in process of being downloaded, which is not expected to
* occur here.
*/
if (status == BTMTK_WMT_PATCH_PROGRESS) {
err = -EIO;
goto err_release_fw;
} else if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
err);
goto err_release_fw;