Commit 8bccf667 authored by Dmitry Torokhov's avatar Dmitry Torokhov
Browse files

Input: cypress_ps2 - report timeouts when reading command status 

Report -ETIMEDOUT error code from cypress_ps2_read_cmd_status() when
device does not send enough data within the allotted time in response
to a command.

Link: https://lore.kernel.org/r/20240628224728.2180126-3-dmitry.torokhov@gmail.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent e8688b93

drivers/input/mouse/cypress_ps2.c

+6 −3
Original line number Diff line number Diff line
@@ -115,9 +115,12 @@ static int cypress_ps2_read_cmd_status(struct psmouse *psmouse, 
	if (rc < 0)

		goto out;



	wait_event_timeout(ps2dev->wait,

			(psmouse->pktcnt >= pktsize),

			msecs_to_jiffies(CYTP_CMD_TIMEOUT));

	if (!wait_event_timeout(ps2dev->wait,

				psmouse->pktcnt >= pktsize,

				msecs_to_jiffies(CYTP_CMD_TIMEOUT))) {

		rc = -ETIMEDOUT;

		goto out;

	}



	memcpy(param, psmouse->packet, pktsize);