From nobody Mon Apr 6 15:45:06 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (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 456B437C936 for ; Thu, 19 Mar 2026 09:36:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773912977; cv=none; b=b9Ptfn+oRF16lp5FMOxry/s8IGVmHhUzYAUGEskRmUduAgzUUJW0kcpbtZBRxDieFgsw5dEvFHPEh5mL8P3j6f11Y7why4qT1vxnwAT79LAtFumMJl7NpR4SFyxGe4Vfd3c3tGmF3DD8c+3GWCTIYzAxmJuSO4YKwiqwDNtjKuw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773912977; c=relaxed/simple; bh=m8AU9YbHCXej+SKSdGs3GzysiW4jTlyz0Bb9vHcmVTg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=MrX1DAQrz13xAUDqaYiV+pqMHTSXUGrRid5M72iN2FltHt8w7GrQrWB9jIUAepv7dwz4FUqHdtuYiWays4F82ghqdU/vlBMM420sIIxr3N+CWMZNsiuNny4D8UFNSnlMJhc1xi300E5IDU/asEJ6ZnDNmAXbLS3731J+tCLbat4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1w39nV-0003OD-Oe; Thu, 19 Mar 2026 10:36:09 +0100 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac] helo=dude04) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w39nV-0013Dc-0y; Thu, 19 Mar 2026 10:36:09 +0100 Received: from [::1] (helo=dude04.red.stw.pengutronix.de) by dude04 with esmtp (Exim 4.98.2) (envelope-from ) id 1w39nV-00000008yzO-0YRi; Thu, 19 Mar 2026 10:36:09 +0100 From: Michael Grzeschik Date: Thu, 19 Mar 2026 10:36:00 +0100 Subject: [PATCH 03/11] net/9p/usbg: set client to Disconnected on usb9pfs_disable Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260319-9pfixes-v1-3-c977a7433185@pengutronix.de> References: <20260319-9pfixes-v1-0-c977a7433185@pengutronix.de> In-Reply-To: <20260319-9pfixes-v1-0-c977a7433185@pengutronix.de> To: Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Greg Kroah-Hartman , Hyungjung Joo Cc: v9fs@lists.linux.dev, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Michael Grzeschik , stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1044; i=m.grzeschik@pengutronix.de; h=from:subject:message-id; bh=m8AU9YbHCXej+SKSdGs3GzysiW4jTlyz0Bb9vHcmVTg=; b=owEBbQKS/ZANAwAKAb9pWET5cfSrAcsmYgBpu8OGeFFoIfyu6skOmAVIv8zLIPC2OixXRs8/M HCyfLb38EuJAjMEAAEKAB0WIQQV2+2Fpbqd6fvv0Gi/aVhE+XH0qwUCabvDhgAKCRC/aVhE+XH0 q5OXD/4i2StoQqHTQLcFjy9uWad+Q4akq+NbiXpR+hAKVMZvo1NMRG6fP4p0VwTtRiSqgyl+1uB 8kg6mfiL8fHzTKW6uuxPmGbNRplNGiAPvHLNQ3HFJ1NANliqCKcPSD9jx2r1kuYiPWAcWAa+JR3 zNrP06zURAIQSeFK4khpHpSsGsBRaEWl89UnPet/E5hdmuZaKj+EJWEtmByJqdAn/KtTx9fw+E8 52yZ7v7193zimjiO3j1mbR9kNzxtIj1Y5CibpuND2R7mmBOAeqzb7/KXX/uirZHqXO0xvtEo3qA e6PCKhXPYAd2gQu78mhuio4RIf8ezvsrjSQYY7kTso8l+2XDRc1aIsG81tUiaoNlP+XtWsyu8o6 N7kdxLUJETi9RDQZ6zZWW5OFF1TEJ67a9/CBa7NpoworeGRKlj350UJjn9zZ5/RU8DpOny0CNYt ztJXre8Cv8ySRmS1nAmceg+hoEZTI3wnjuFUf+sdw0SZZ8Evofp1DIjQg9zN1Y6qU3CtWyzq+IO kTui0ZHID5WzzUWeWozhTFpGuqgSp/vXRwGaXB2mMfK46CnullhloED/7OVxQh9zkw/G/70Svkt ODES6423kxP4CW/e6U/5bAIU8uvOLn6UnbzLCs0HbWt8Qp0nDon/VcqmzV2mCHvs6+B9Qc0AP8s ZFON1FLEfUYCi9A== X-Developer-Key: i=m.grzeschik@pengutronix.de; a=openpgp; fpr=957BC452CE953D7EA60CF4FC0BE9E3157A1E2C64 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: m.grzeschik@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org This patch is setting the client status to Disconnected, when the client is still in use. Otherwiese a disconnected usb cable would run any use of the mount to faults. Fixes: a3be076dc174 ("net/9p/usbg: Add new usb gadget function transport") Cc: stable@vger.kernel.org Signed-off-by: Michael Grzeschik --- net/9p/trans_usbg.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/9p/trans_usbg.c b/net/9p/trans_usbg.c index fb05198dc2a7d604cfad2db26a63e40e632651a2..6ddf6886dbadd7cdfdebb96dc76= 7874169ccb16e 100644 --- a/net/9p/trans_usbg.c +++ b/net/9p/trans_usbg.c @@ -779,7 +779,12 @@ static int usb9pfs_set_alt(struct usb_function *f, static void usb9pfs_disable(struct usb_function *f) { struct f_usb9pfs *usb9pfs =3D func_to_usb9pfs(f); + unsigned long flags; =20 + spin_lock_irqsave(&usb9pfs->lock, flags); + if (usb9pfs->client) + usb9pfs->client->status =3D Disconnected; + spin_unlock_irqrestore(&usb9pfs->lock, flags); usb9pfs_clear_tx(usb9pfs); } =20 --=20 2.47.3