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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Andrei Kuchynski <akuchynski@chromium.org>
Cc: stable@vger.kernel.org, stable <stable@kernel.org>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>
Subject: Re: [PATCH 6.12.y] usb: typec: ucsi: displayport: Fix deadlock
Date: Mon, 19 May 2025 08:57:11 +0200	[thread overview]
Message-ID: <2025051945-rotten-primer-4e5c@gregkh> (raw)
In-Reply-To: <20250514144931.2347498-1-akuchynski@chromium.org>

On Wed, May 14, 2025 at 02:49:31PM +0000, Andrei Kuchynski wrote:
> This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock
> functions to the UCSI driver. ucsi_con_mutex_lock ensures the connector
> mutex is only locked if a connection is established and the partner pointer
> is valid. This resolves a deadlock scenario where
> ucsi_displayport_remove_partner holds con->mutex waiting for
> dp_altmode_work to complete while dp_altmode_work attempts to acquire it.
> 
> Cc: stable <stable@kernel.org>
> Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode")
> Change-Id: Ib10b1ec42c210b49cf67155ed1df7b074a99405e

Why did you add a Change-Id: here?

Please fix up for all of these that you submitted with that invalid
tag in it.

thanks,

greg k-h

  parent reply	other threads:[~2025-05-19  6:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-12 10:50 FAILED: patch "[PATCH] usb: typec: ucsi: displayport: Fix deadlock" failed to apply to 6.12-stable tree gregkh
2025-05-14 14:49 ` [PATCH 6.12.y] usb: typec: ucsi: displayport: Fix deadlock Andrei Kuchynski
2025-05-15  0:28   ` Sasha Levin
2025-05-19  6:57   ` Greg Kroah-Hartman [this message]
2025-05-19  8:57 ` Andrei Kuchynski
2025-05-20  7:52   ` Sasha Levin

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