linux-kernel - [PATCH] usb: typec: tps6598x: Fix fault at module removal

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Message-Id: <20230421101720.34318-1-rogerq@kernel.org>
Date:   Fri, 21 Apr 2023 13:17:20 +0300
From:   Roger Quadros <rogerq@...nel.org>
To:     heikki.krogerus@...ux.intel.com, gregkh@...uxfoundation.org
Cc:     srk@...com, r-gunasekaran@...com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, Roger Quadros <rogerq@...nel.org>
Subject: [PATCH] usb: typec: tps6598x: Fix fault at module removal

We need to cancel the delayed workqueue if it is being used
else it will cause paging request fault during module removal.

Fixes: 0d6a119cecd7 ("usb: typec: tps6598x: Add support for polling interrupts status")
Signed-off-by: Roger Quadros <rogerq@...nel.org>
---
 drivers/usb/typec/tipd/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 8b075ca82ef6..438cc40660a1 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -886,6 +886,9 @@ static void tps6598x_remove(struct i2c_client *client)
 {
 	struct tps6598x *tps = i2c_get_clientdata(client);
 
+	if (!client->irq)
+		cancel_delayed_work_sync(&tps->wq_poll);
+
 	tps6598x_disconnect(tps, 0);
 	typec_unregister_port(tps->port);
 	usb_role_switch_put(tps->role_sw);
-- 
2.34.1