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 14E22137750 for ; Mon, 29 Dec 2025 14:02:20 +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=1767016940; cv=none; b=PzAkPi85+q5HVbX/9qezB8zCaheVXgdLfeQ3UzlyFE+K87LLu/uLzMBivXJr5iXX9ZMnDDX1IzCUA/L/o5H2HxmE9bcpV0RAy0iGRY9fxiNJbFY6nTdq7wUWWt3LR2D4wMLbwtUEdFb2OUKTPwJ/ba0T/lvhGzJxIC+JPA1lpUQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767016940; c=relaxed/simple; bh=IvVoZYhC79NgYXt18mCl08IztZDeqdyX6hflb7xd15M=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=FGoSa2gsDQFZK+C1jPCwLJdTwRzdI7aryvoldKOrbLheD5G95PK25AR04g7LVkWxR/dNdlJr2gINgySHbUjMDemnqsF8Q4kukMIvkPfPXav3rIfufJCv5/oN0Gup2Fz0lsIhsPNJLhDVhkLXyLBWDcjwfWwQRbQEDuRsdrOKLYo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=FFvIz4GI; 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="FFvIz4GI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86483C4CEF7; Mon, 29 Dec 2025 14:02:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767016939; bh=IvVoZYhC79NgYXt18mCl08IztZDeqdyX6hflb7xd15M=; h=Subject:To:Cc:From:Date:From; b=FFvIz4GI8WUeVsSw+CPMTj1jXCHu3sVyQiS4w0RDzhHWyEkN+b4mpL5y8hOTQorFF r5sRyxZsSnNE7HMSJyBV+JEmuReHAhojdSMb+DZ8XyQjeB1yDFVG/BadFD3/4cribR ZpiDj6Ve0vDGLTQslHGcrTSksptSQxQIEuVRFsoQ= Subject: FAILED: patch "[PATCH] xhci: dbgtty: fix device unregister: fixup" failed to apply to 6.12-stable tree To: ukaszb@chromium.org,gregkh@linuxfoundation.org,stable@kernel.org Cc: From: Date: Mon, 29 Dec 2025 15:02:17 +0100 Message-ID: <2025122917-unsheathe-breeder-0ac2@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 74098cc06e753d3ffd8398b040a3a1dfb65260c0 # git commit -s git send-email --to '' --in-reply-to '2025122917-unsheathe-breeder-0ac2@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 74098cc06e753d3ffd8398b040a3a1dfb65260c0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C5=81ukasz=20Bartosik?= Date: Thu, 27 Nov 2025 11:16:44 +0000 Subject: [PATCH] xhci: dbgtty: fix device unregister: fixup MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixup replaces tty_vhangup() call with call to tty_port_tty_vhangup(). Both calls hangup tty device synchronously however tty_port_tty_vhangup() increases reference count during the hangup operation using scoped_guard(tty_port_tty). Cc: stable Fixes: 1f73b8b56cf3 ("xhci: dbgtty: fix device unregister") Signed-off-by: Łukasz Bartosik Link: https://patch.msgid.link/20251127111644.3161386-1-ukaszb@google.com Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c index 57cdda4e09c8..90282e51e23e 100644 --- a/drivers/usb/host/xhci-dbgtty.c +++ b/drivers/usb/host/xhci-dbgtty.c @@ -554,7 +554,7 @@ static void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc) * Hang up the TTY. This wakes up any blocked * writers and causes subsequent writes to fail. */ - tty_vhangup(port->port.tty); + tty_port_tty_vhangup(&port->port); tty_unregister_device(dbc_tty_driver, port->minor); xhci_dbc_tty_exit_port(port);