From 1db0fd245b6016c21097b5ae01aeb447484de951 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov <dmitry.torokhov@gmail.com> Date: Thu, 11 May 2023 11:52:44 -0700 Subject: Input: libps2 - fix NAK handling Do not try to process "resend" or "reject" responses from the device as normal response data for a command. Reviewed-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20230511185252.386941-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> --- drivers/input/serio/libps2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index d09450eca9a7..14b70a78875d 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -445,7 +445,7 @@ bool ps2_handle_ack(struct ps2dev *ps2dev, u8 data) ps2dev->flags &= ~PS2_FLAG_ACK; wake_up(&ps2dev->wait); - if (data != PS2_RET_ACK) + if (!ps2dev->nak && data != PS2_RET_ACK) ps2_handle_response(ps2dev, data); return true; -- cgit