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From: Andrei Kuchynski <akuchynski@chromium.org>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jameson Thies <jthies@google.com>,
Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
Benson Leung <bleung@chromium.org>,
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Pooja Katiyar <pooja.katiyar@intel.com>,
Madhu M <madhu.m@intel.com>
Cc: linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org,
Andrei Kuchynski <akuchynski@chromium.org>,
stable@vger.kernel.org
Subject: [PATCH 2/2] usb: typec: ucsi: displayport: Fix NULL pointer access
Date: Wed, 9 Apr 2025 14:02:21 +0000
Message-ID: <20250409140221.654892-3-akuchynski@chromium.org>
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|
| Series |
Fix thread synchronization issues
|
expand
|
diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c index acd053d4e38c..8aae80b457d7 100644 --- a/drivers/usb/typec/ucsi/displayport.c +++ b/drivers/usb/typec/ucsi/displayport.c @@ -299,6 +299,8 @@ void ucsi_displayport_remove_partner(struct typec_altmode *alt) if (!dp) return; + cancel_work_sync(&dp->work); + dp->data.conf = 0; dp->data.status = 0; dp->initialized = false;
This patch ensures that the UCSI driver waits for all pending tasks in the ucsi_displayport_work workqueue to finish executing before proceeding with the partner removal. Cc: stable@vger.kernel.org Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode") Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> --- drivers/usb/typec/ucsi/displayport.c | 2 ++ 1 file changed, 2 insertions(+)