linux-kernel - [PATCH] usb: typec: Check for ops->exit instead of ops->enter in altmode

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Message-Id: <20221114165924.33487-1-sven@svenpeter.dev>
Date:   Mon, 14 Nov 2022 17:59:24 +0100
From:   Sven Peter <sven@...npeter.dev>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Sven Peter <sven@...npeter.dev>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] usb: typec: Check for ops->exit instead of ops->enter in altmode_exit

typec_altmode_exit checks if ops->enter is not NULL but then calls
ops->exit a few lines below. Fix that and check for the function
pointer it's about to call instead.

Fixes: 8a37d87d72f0 ("usb: typec: Bus type for alternate modes")
Signed-off-by: Sven Peter <sven@...npeter.dev>
---
 drivers/usb/typec/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
index 26ea2fdec17d..31c2a3130cad 100644
--- a/drivers/usb/typec/bus.c
+++ b/drivers/usb/typec/bus.c
@@ -134,7 +134,7 @@ int typec_altmode_exit(struct typec_altmode *adev)
 	if (!adev || !adev->active)
 		return 0;
 
-	if (!pdev->ops || !pdev->ops->enter)
+	if (!pdev->ops || !pdev->ops->exit)
 		return -EOPNOTSUPP;
 
 	/* Moving to USB Safe State */
-- 
2.25.1