linux-kernel - [PATCH 5.12 158/173] platform/surface: aggregator: Fix event disable function

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Date:   Mon, 14 Jun 2021 12:28:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Maximilian Luz <luzmaximilian@...il.com>,
        Hans de Goede <hdegoede@...hat.com>
Subject: [PATCH 5.12 158/173] platform/surface: aggregator: Fix event disable function

From: Maximilian Luz <luzmaximilian@...il.com>

commit b430e1d65ef6eeee42c4e53028f8dfcc6abc728b upstream.

Disabling events silently fails due to the wrong command ID being used.
Instead of the command ID for the disable call, the command ID for the
enable call was being used. This causes the disable call to enable the
event instead. As the event is already enabled when we call this
function, the EC silently drops this command and does nothing.

Use the correct command ID for disabling the event to fix this.

Fixes: c167b9c7e3d6 ("platform/surface: Add Surface Aggregator subsystem")
Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
Link: https://lore.kernel.org/r/20210603000636.568846-1-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/platform/surface/aggregator/controller.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/platform/surface/aggregator/controller.c
+++ b/drivers/platform/surface/aggregator/controller.c
@@ -1907,7 +1907,7 @@ static int ssam_ssh_event_disable(struct
 {
 	int status;
 
-	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_enable, id, flags);
+	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_disable, id, flags);
 
 	if (status < 0 && status != -EINVAL) {
 		ssam_err(ctrl,