linux-kernel - [PATCH 07/10] mei: vsc: Unset the event callback on remove and probe errors

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Message-ID: <20250623085052.12347-8-hansg@kernel.org>
Date: Mon, 23 Jun 2025 10:50:49 +0200
From: Hans de Goede <hansg@...nel.org>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>,
	Alexander Usyskin <alexander.usyskin@...el.com>
Cc: Hans de Goede <hansg@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 07/10] mei: vsc: Unset the event callback on remove and probe errors

Make mei_vsc_remove() properly unset the callback to avoid a dead callback
sticking around after probe errors or unbinding of the platform driver.

Fixes: 386a766c4169 ("mei: Add MEI hardware support for IVSC device")
Signed-off-by: Hans de Goede <hansg@...nel.org>
---
 drivers/misc/mei/platform-vsc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/misc/mei/platform-vsc.c b/drivers/misc/mei/platform-vsc.c
index 1ac85f0251c5..b2b5a20ae3fa 100644
--- a/drivers/misc/mei/platform-vsc.c
+++ b/drivers/misc/mei/platform-vsc.c
@@ -380,6 +380,8 @@ static int mei_vsc_probe(struct platform_device *pdev)
 err_cancel:
 	mei_cancel_work(mei_dev);
 
+	vsc_tp_register_event_cb(tp, NULL, NULL);
+
 	mei_disable_interrupts(mei_dev);
 
 	return ret;
@@ -388,11 +390,14 @@ static int mei_vsc_probe(struct platform_device *pdev)
 static void mei_vsc_remove(struct platform_device *pdev)
 {
 	struct mei_device *mei_dev = platform_get_drvdata(pdev);
+	struct mei_vsc_hw *hw = mei_dev_to_vsc_hw(mei_dev);
 
 	pm_runtime_disable(mei_dev->dev);
 
 	mei_stop(mei_dev);
 
+	vsc_tp_register_event_cb(hw->tp, NULL, NULL);
+
 	mei_disable_interrupts(mei_dev);
 
 	mei_deregister(mei_dev);
-- 
2.49.0