From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBA5678F52; Mon, 12 May 2025 17:31:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747071100; cv=none; b=IHr9HbLkeJ5Gzu6c+sO+7aEBqXQOpVvrLNOlWnzSzEs2qFPUgagnnakEm7JPTGRNuDhwXIR63doYC3ClFJ20u8wDFSbr6+B7suY+wQiVJ102hMBiDcLXQd9ZpUG5q6k0MLdX7nOfjhilsa0MZSyOLgAdrEqAYZz+REr/NlGd8pk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747071100; c=relaxed/simple; bh=FN1Sy/HJSiWJgF2i2t4+7CssJIm2lXu73/8oWjz8YZo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EegZgNI3dKOJpN7QC+78TXg6ZXYfshT8aKV5lRXZO/kB3Xuzcf29PsHNOnlq5uryw9QT2MCJ60dhF7yx7GjaFhqacxYAbGUIz6aikGval4DZP9eQswGB2KIOIg1sXhdFhlj/3hQ1ibVRjxnvmB4BqGdJ5i/a/dffKqgUoOtpbqE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kIFyYHw1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kIFyYHw1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A190C4CEE7; Mon, 12 May 2025 17:31:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1747071100; bh=FN1Sy/HJSiWJgF2i2t4+7CssJIm2lXu73/8oWjz8YZo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kIFyYHw19vGQjzOhCWS0L6/wIDHcponfJJ6oN6sc3jMj6SqIUqcp/fEBa60XyLByZ 4+HvgMJwGsE4R81U3Om9lDSaYdo+jdSfWA+sP7WYUBIn3rTfEqDQe18opILSouloCV 8/q1R/BldlevIlzn/CB/D2wvTM9vg5+i+C0PpvQk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Andrei Kuchynski , Heikki Krogerus , Benson Leung Subject: [PATCH 5.15 40/54] usb: typec: ucsi: displayport: Fix NULL pointer access Date: Mon, 12 May 2025 19:29:52 +0200 Message-ID: <20250512172017.255192243@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250512172015.643809034@linuxfoundation.org> References: <20250512172015.643809034@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andrei Kuchynski commit 312d79669e71283d05c05cc49a1a31e59e3d9e0e upstream. 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 Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode") Signed-off-by: Andrei Kuchynski Reviewed-by: Heikki Krogerus Reviewed-by: Benson Leung Link: https://lore.kernel.org/r/20250424084429.3220757-3-akuchynski@chromium.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/ucsi/displayport.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/typec/ucsi/displayport.c +++ b/drivers/usb/typec/ucsi/displayport.c @@ -296,6 +296,8 @@ void ucsi_displayport_remove_partner(str if (!dp) return; + cancel_work_sync(&dp->work); + dp->data.conf = 0; dp->data.status = 0; dp->initialized = false;