Bluetooth: hci_qca: Fix memleak in qca_controller_memdump

stable inclusion
from stable-5.10.20
commit 601899cec0a3a84341d70289cd014d358b00f808
bugzilla: 50608

--------------------------------

[ Upstream commit 71f8e707 ]

When __le32_to_cpu() fails, qca_memdump should be freed
just like when vmalloc() fails.

Fixes: d841502c ("Bluetooth: hci_qca: Collect controller memory dump during SSR")
Signed-off-by: NDinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/bluetooth/hci_qca.c

@@ -1020,7 +1020,9 @@ static void qca_controller_memdump(struct work_struct *work)
 			dump_size = __le32_to_cpu(dump->dump_size);
 			if (!(dump_size)) {
 				bt_dev_err(hu->hdev, "Rx invalid memdump size");
+				kfree(qca_memdump);
 				kfree_skb(skb);
+				qca->qca_memdump = NULL;
 				mutex_unlock(&qca->hci_memdump_lock);
 				return;
 			}