[PATCH] Bluetooth: qca: fix firmware check error path

From: Johan Hovold
Date: Wed May 01 2024 - 02:38:41 EST


A recent commit fixed the code that parses the firmware files before
downloading them to the controller but introduced a memory leak in case
the sanity checks ever fail.

Make sure to free the firmware buffer before returning on errors.

Fixes: 6fb81c405bfa ("Bluetooth: qca: add missing firmware sanity checks")
Cc: stable@xxxxxxxxxxxxxxx # 4.19
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/bluetooth/btqca.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Luiz,

Sorry for not catching this before posting v2.

Feel to free to squash this fix into commit 6fb81c405bfa ("Bluetooth:
qca: add missing firmware sanity checks") in the bluetooth-next branch
if you prefer.

Note that the commit id in the Fixes tag above won't match if you cherry
pick both commits to the fixes branch.

Johan


diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 125f140e012a..59e384fa1a0c 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -676,7 +676,7 @@ static int qca_download_firmware(struct hci_dev *hdev,

ret = qca_tlv_check_data(hdev, config, data, size, soc_type);
if (ret)
- return ret;
+ goto out;

segment = data;
remain = size;
--
2.43.2