Re: [syzbot] possible deadlock in input_event (2)

[Jeongjun Park]

please test deadlock in input_event

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

---
 drivers/input/evdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 51e0c4954600..181c798b232b 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -258,7 +258,7 @@ static void evdev_pass_values(struct evdev_client *client,
 	event.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;
 
 	/* Interrupts are disabled, just acquire the lock. */
-	spin_lock(&client->buffer_lock);
+	spin_lock_irq(&client->buffer_lock);
 
 	for (v = vals; v != vals + count; v++) {
 		if (__evdev_is_filtered(client, v->type, v->code))
@@ -278,7 +278,7 @@ static void evdev_pass_values(struct evdev_client *client,
 		__pass_event(client, &event);
 	}
 
-	spin_unlock(&client->buffer_lock);
+	spin_unlock_irq(&client->buffer_lock);
 
 	if (wakeup)
 		wake_up_interruptible_poll(&client->wait,
-- 
2.34.1