[RFC][PATCH v2 08/31] timers: Bluetooth: Use del_timer_shutdown() before freeing timer

[Steven Rostedt]

From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>

Before a timer is freed, del_timer_shutdown() must be called.

Link: https://lore.kernel.org/all/20220407161745.7d6754b3@xxxxxxxxxxxxxxxxxx/

Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx>
Cc: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>
Cc: linux-bluetooth@xxxxxxxxxxxxxxx
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
 drivers/bluetooth/hci_bcsp.c | 2 +-
 drivers/bluetooth/hci_h5.c   | 2 +-
 drivers/bluetooth/hci_qca.c  | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index cf4a56095817..69caaff37141 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -737,7 +737,7 @@ static int bcsp_close(struct hci_uart *hu)
 {
 	struct bcsp_struct *bcsp = hu->priv;
 
-	del_timer_sync(&bcsp->tbcsp);
+	del_timer_shutdown(&bcsp->tbcsp);
 
 	hu->priv = NULL;
 
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index c5a0409ef84f..08a36ea9eea9 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -253,7 +253,7 @@ static int h5_close(struct hci_uart *hu)
 {
 	struct h5 *h5 = hu->priv;
 
-	del_timer_sync(&h5->timer);
+	del_timer_shutdown(&h5->timer);
 
 	skb_queue_purge(&h5->unack);
 	skb_queue_purge(&h5->rel);
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 8df11016fd51..1796166ba35d 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -697,8 +697,8 @@ static int qca_close(struct hci_uart *hu)
 	skb_queue_purge(&qca->txq);
 	skb_queue_purge(&qca->rx_memdump_q);
 	destroy_workqueue(qca->workqueue);
-	del_timer_sync(&qca->tx_idle_timer);
-	del_timer_sync(&qca->wake_retrans_timer);
+	del_timer_shutdown(&qca->tx_idle_timer);
+	del_timer_shutdown(&qca->wake_retrans_timer);
 	qca->hu = NULL;
 
 	kfree_skb(qca->rx_skb);
-- 
2.35.1