From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1F87A51EE1F; Mon, 21 Sep 2026 22:26:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790029579; cv=none; b=MWj5iXoDst1k3960dAizsnLtTSFaOZ8AuyBW+ABhbtTTJOEYFJ2ZfEO9dOcZuRLXRxbZIfKkoH8tjTQ57U+WQRnapUvxoZV4LDB7el8C6mmE7Uk6ZEr1lvYYmu3aZzeC/Fuj31lDiAzzKC65VNNr09cQaDwxKZbwAC9hDY5qzSg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790029579; c=relaxed/simple; bh=tQErgxz8d4ieMH0CWIG8w2M/H+3MIf9cEE5FuXtAOus=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=BKuYLDTkB8SqkenPLnYTCxKBHHJxZs378DxQQ9wRYwJqGmOmjjX9zDyF8F5e2pENV/MZjzbmlrlnTxGt16XwBt/KKUX+nFNAy51zMhKmz7LBnBbEA6L+ukvk4AACqBX3XliHy5uXuMpC4shoNa9XDs23RyUCqrn5Y8wA3x67WFs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bi5Clfh/; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bi5Clfh/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC89E1F00898; Mon, 21 Sep 2026 22:26:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790029577; bh=3lI3HQC9chBAMmb+T3CdTqkPoTDWc/bRBxcstdw4V3o=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=bi5Clfh/jeLP0pgh83Ip9yAKTTg3KCzBq1fdQ9q+teHotlnzev1Jq31LENfq55gfO OFG+AxgknIxPPX2Iwdzo2fdqPSIS9rXK14srjT1XGdB/p3/dsCJm9Lh4taYY+sb4Wq CPAv6+gz5RhqR6YRPQDlFvvALvt3ydt6GyT/Kzz/Vs4djhhMomM3zj0UD9YQWEROZx hJsV/VGBvFp3imZlsn8kg4y1Y+HnOQslHtLM1Tx1bYwXneBOif/q07+Lf4OiWoSznQ qQxLeHCPgLs6jK5EFLuXbP7eyu4mw8mZRwUHf3jw9tD9UjaNuiBR7ZYODVAAC9KfCO +jl2UdDtD/k2Q== From: Michael Grzeschik Date: Tue, 22 Sep 2026 00:25:54 +0200 Subject: [PATCH 1/7] net/9p/usbg: also disable endpoints on p9_usbg_close 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: 7bit Message-Id: <20260922-usb9pfsfixes-v1-1-9d8dcc52904c@kernel.org> References: <20260922-usb9pfsfixes-v1-0-9d8dcc52904c@kernel.org> In-Reply-To: <20260922-usb9pfsfixes-v1-0-9d8dcc52904c@kernel.org> To: Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Greg Kroah-Hartman Cc: v9fs@lists.linux.dev, linux-kernel@vger.kernel.org, Michael Grzeschik , stable@vger.kernel.org X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=869; i=mgr@kernel.org; h=from:subject:message-id; bh=tQErgxz8d4ieMH0CWIG8w2M/H+3MIf9cEE5FuXtAOus=; b=owEBbQKS/ZANAwAKAb9pWET5cfSrAcsmYgBqsa8DA1XjZ/WrRUv675v5v0nqBM0/eo2G1H9y+ lxWJEOV/dKJAjMEAAEKAB0WIQQV2+2Fpbqd6fvv0Gi/aVhE+XH0qwUCarGvAwAKCRC/aVhE+XH0 q+7AEACrMtVG7EHxL1V+ovxK2LMv0j3X6s5vWL2O9V8Alg3OMzgJSRM9T2u4GViHkO1aesvsRAN ZHV1TCqcSvYr1hPlkQME2UPTyAtjGG/3JQCnpUfgq2DKOHKi3xvFSMuXDJBCH2vdLqEf4XWbQKr qw8aU6wCifX7C4IHXHtnwqKY0Uf7YgFgAwQShY4C3XY5gqaKoFAnL5ixoHeruxZb0hJAm7PAEE4 ivyawEQQgu709taKoIOk6ScNzTGuNV3kyvmK+03cDswUENdE4R/lkCgXEVHfM+23s+LUUfESiK4 Do7lcspbhZXsLof1pE/FqJphRhmqwG0oia8EVrgUNJTDcUnZcRDIo7HXkc0NFldcVmNQ1MX+KKI QOWEg/oaVwPKwZST7wHgMfrrnRbuMk3I5gICHI4CFjbNq/h4sgqD89NoL/Q5JEHuh7j0+OsSyjf hYZjqCm7xth4HWGDpUX5laaQaWz3urYge/W7+TSolzdEKKo5kfJLgOhDMbHTkt/XyWlwgBLtIU6 G7QB/5ww3FFPv6xsR5J3L9NVIeICS5qrY9E0Bu6mo3QyU0cfZ3MeLexJalSEc9br8ybNIwnsQvK p/SPLb0JrtvlckzO1wX4aaqZfU96qxC+kaGk7jH3CMQPmmXgmH5e7y59Co2mKr7pa4DBSRHZrca pBf0m5kykdcbdEQ== X-Developer-Key: i=mgr@kernel.org; a=openpgp; fpr=957BC452CE953D7EA60CF4FC0BE9E3157A1E2C64 The close function has to fully reverse the state change of 9p_create (mount) and the potential call of set_alt(1). This includes to ensure that the usage of the endpoints is not active any more. 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 | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/9p/trans_usbg.c b/net/9p/trans_usbg.c index 9fd7801d56ab..32e18077309a 100644 --- a/net/9p/trans_usbg.c +++ b/net/9p/trans_usbg.c @@ -473,6 +473,8 @@ static void p9_usbg_close(struct p9_client *client) mutex_lock(&usb9pfs_lock); dev->inuse = false; mutex_unlock(&usb9pfs_lock); + + disable_usb9pfs(usb9pfs); } static int p9_usbg_request(struct p9_client *client, struct p9_req_t *p9_req) -- 2.53.0