[RFC][PATCH v3 26/33] timers: tty: Use timer_shutdown_sync() before freeing timer

Steven Rostedt
2022-11-04T05:50:45Z

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

Link: https://lore.kernel.org/all/20220407161745.7d6754b3@gandalf.local.home/

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
drivers/tty/n_gsm.c | 2 +-
drivers/tty/sysrq.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 5e516f5cac5a..6f48adecd1d4 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2098,7 +2098,7 @@ static void gsm_dlci_free(struct tty_port *port)
{
struct gsm_dlci *dlci = container_of(port, struct gsm_dlci, port);

- del_timer_sync(&dlci->t1);
+ timer_shutdown_sync(&dlci->t1);
dlci->gsm->dlci[dlci->addr] = NULL;
kfifo_free(&dlci->fifo);
while ((dlci->skb = skb_dequeue(&dlci->skb_list)))
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index d2b2720db6ca..b6e70c5cfa17 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -1003,7 +1003,7 @@ static void sysrq_disconnect(struct input_handle *handle)

input_close_device(handle);
cancel_work_sync(&sysrq->reinject_work);
- del_timer_sync(&sysrq->keyreset_timer);
+ timer_shutdown_sync(&sysrq->keyreset_timer);
input_unregister_handle(handle);
kfree(sysrq);
}
--
2.35.1