mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-30 22:26:55 +00:00
can: isotp: handle wait_event_interruptible() return values
commit823b2e4272
upstream. When wait_event_interruptible() has been interrupted by a signal the tx.state value might not be ISOTP_IDLE. Force the state machines into idle state to inhibit the timer handlers to continue working. Fixes:866337865f
("can: isotp: fix tx state handling for echo tx processing") Cc: stable@vger.kernel.org Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/all/20230112192347.1944-1-socketcan@hartkopp.net Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
cae4c9bc35
commit
ad88608681
1 changed files with 4 additions and 0 deletions
|
@ -1152,6 +1152,10 @@ static int isotp_release(struct socket *sock)
|
|||
/* wait for complete transmission of current pdu */
|
||||
wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);
|
||||
|
||||
/* force state machines to be idle also when a signal occurred */
|
||||
so->tx.state = ISOTP_IDLE;
|
||||
so->rx.state = ISOTP_IDLE;
|
||||
|
||||
spin_lock(&isotp_notifier_lock);
|
||||
while (isotp_busy_notifier == so) {
|
||||
spin_unlock(&isotp_notifier_lock);
|
||||
|
|
Loading…
Reference in a new issue