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 5CCFC11706 for ; Mon, 11 Sep 2023 15:01:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4897C433C7; Mon, 11 Sep 2023 15:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694444501; bh=EtExqsOOX2f0wc3frbzvZLvjMffY2QKVUNsTWPDBt8k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RFW4k6y3MPOUN5JbEdvqm0S7/NvM070X05Gcnx/wg++XpDhJeupfkqpmihQoxuBML Ig/p+lDfNZ/zcax/ADRf64a+zlq7WxtRIeD9BcbJ3042itlSp8Ad4KPVzpSMhzdhR9 NJjk/z6WfTrQXOXM6UtVQbU+astCzav71umOItX4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Simon Horman , Dominique Martinet , Eric Van Hensbergen , Sasha Levin Subject: [PATCH 6.1 015/600] 9p: virtio: make sure offs is initialized in zc_request Date: Mon, 11 Sep 2023 15:40:48 +0200 Message-ID: <20230911134634.066933639@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134633.619970489@linuxfoundation.org> References: <20230911134633.619970489@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dominique Martinet [ Upstream commit 4a73edab69d3a6623f03817fe950a2d9585f80e4 ] Similarly to the previous patch: offs can be used in handle_rerrors without initializing on small payloads; in this case handle_rerrors will not use it because of the size check, but it doesn't hurt to make sure it is zero to please scan-build. This fixes the following warning: net/9p/trans_virtio.c:539:3: warning: 3rd function call argument is an uninitialized value [core.CallAndMessage] handle_rerror(req, in_hdr_len, offs, in_pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Reviewed-by: Simon Horman Signed-off-by: Dominique Martinet Signed-off-by: Eric Van Hensbergen Signed-off-by: Sasha Levin --- net/9p/trans_virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 6a4a29a2703de..3cf660d8a0a7b 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -429,7 +429,7 @@ p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req, struct page **in_pages = NULL, **out_pages = NULL; struct virtio_chan *chan = client->trans; struct scatterlist *sgs[4]; - size_t offs; + size_t offs = 0; int need_drop = 0; int kicked = 0; -- 2.40.1