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 3885D137750 for ; Mon, 29 Dec 2025 14:02:31 +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=1767016951; cv=none; b=UIDCFHp+wEtQqHXplatuu3sb4zXj70XWKbG+FkVmAUIIqCiz1rByryAgIvVF9GZts7tJ1DcrScR+YfmB4wDkKxY3Nn0gloug3v3eJMfTWNdZ+tnjkLSVlk0oXsQMrfnXCviaKJ7TOdVIykqP/k/yHgucEXJ0AsIyLsUaEB1+Fg4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767016951; c=relaxed/simple; bh=bJalr4yEADqR3BcB/4bIqet4JwoRhgzwHf26SHubLjA=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=QsWus7LFUylzxoV9TVUJTo71EKUfWBQRrXdevmTBGVu8ppOpNQs6drcnHqwn+uYC1USc8ecB6FvBKLmqnRU3c/RqoDspu1D9r4t3zcjERTKVw9ziBuIfkWsp8gjqZZnT8o5qD+pAfbgN0vBGBufB2JfQ776XnTIIN94B8sh0OMY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tUe7/Dhn; 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="tUe7/Dhn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC51CC4CEF7; Mon, 29 Dec 2025 14:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767016951; bh=bJalr4yEADqR3BcB/4bIqet4JwoRhgzwHf26SHubLjA=; h=Subject:To:Cc:From:Date:From; b=tUe7/Dhnv+szNo+M3g8GKoW2J/xK3UOeZDXToE5ZVVH5t4/74myf7jvEy0Hu6Muof tfvcraKXHrFmJ1ielifZ5CdWzhZekAyMo9//e5XqeKwm/X/ps7Q0CMbJ/hDxXi/RtN RMA0qShg3cO49tz6Vrk4iilX+rpNdU2h3rw4zDjc= Subject: FAILED: patch "[PATCH] xhci: dbgtty: fix device unregister: fixup" failed to apply to 6.1-stable tree To: ukaszb@chromium.org,gregkh@linuxfoundation.org,stable@kernel.org Cc: From: Date: Mon, 29 Dec 2025 15:02:18 +0100 Message-ID: <2025122918-sagging-divisible-a4a4@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 6.1-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-6.1.y git checkout FETCH_HEAD git cherry-pick -x 74098cc06e753d3ffd8398b040a3a1dfb65260c0 # git commit -s git send-email --to '' --in-reply-to '2025122918-sagging-divisible-a4a4@gregkh' --subject-prefix 'PATCH 6.1.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);