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Date: Mon, 17 Jan 2022 21:28:45 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Wei Yongjun <weiyongjun1@...wei.com>, Marcel Holtmann <marcel@...tmann.org>, Sasha Levin <sashal@...nel.org>, johan.hedberg@...il.com, luiz.dentz@...il.com, davem@...emloft.net, kuba@...nel.org, linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH AUTOSEL 5.15 001/188] Bluetooth: Fix debugfs entry leak in hci_register_dev() From: Wei Yongjun <weiyongjun1@...wei.com> [ Upstream commit 5a4bb6a8e981d3d0d492aa38412ee80b21033177 ] Fault injection test report debugfs entry leak as follows: debugfs: Directory 'hci0' with parent 'bluetooth' already present! When register_pm_notifier() failed in hci_register_dev(), the debugfs create by debugfs_create_dir() do not removed in the error handing path. Add the remove debugfs code to fix it. Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com> Signed-off-by: Marcel Holtmann <marcel@...tmann.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- net/bluetooth/hci_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8a47a3017d61d..cc48a8a9901c0 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3998,6 +3998,7 @@ int hci_register_dev(struct hci_dev *hdev) return id; err_wqueue: + debugfs_remove_recursive(hdev->debugfs); destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); err: -- 2.34.1
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