From patchwork Fri Jan 14 05:08:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 12713387 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1F14DC433EF for ; Fri, 14 Jan 2022 05:13:53 +0000 (UTC) Received: from localhost ([::1]:59276 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n8EuO-0000If-01 for qemu-devel@archiver.kernel.org; Fri, 14 Jan 2022 00:13:52 -0500 Received: from eggs.gnu.org ([209.51.188.92]:38250) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8EqO-0005sw-Rn for qemu-devel@nongnu.org; Fri, 14 Jan 2022 00:09:44 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:57691) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8EqM-0001OF-8U for qemu-devel@nongnu.org; Fri, 14 Jan 2022 00:09:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1642136980; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=L7aFwPgUMiLWMwFCD1YpzYkJRLrfE9A03ldYN2xCSj4=; b=euXoZnrnb5nHgbqlFg8mZ5BSYr2LleajExvu+XKuiwLSWBCCZlJstBbMPN4XW4eaxuw7fd g9PjvcSs5IW34Q7c1rag0tmSUK2fReZGkUP0BzV/6bX3a5/NmC20zBcOu68anSw3CYaVbR 9JEg4Q8hP/UcyhD4LkmpbiZdNzLO+hY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-286-s7t514qcOG2pKk30WJDf6g-1; Fri, 14 Jan 2022 00:09:35 -0500 X-MC-Unique: s7t514qcOG2pKk30WJDf6g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 229F981CCB5; Fri, 14 Jan 2022 05:09:34 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-172.pek2.redhat.com [10.72.13.172]) by smtp.corp.redhat.com (Postfix) with ESMTP id D3B6C108A9; Fri, 14 Jan 2022 05:09:31 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL V3 02/13] net/tap: Set return code on failure Date: Fri, 14 Jan 2022 13:08:58 +0800 Message-Id: <20220114050909.27133-3-jasowang@redhat.com> In-Reply-To: <20220114050909.27133-1-jasowang@redhat.com> References: <20220114050909.27133-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.594, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Patrick Venture , Jason Wang , Peter Foley , qemu-devel@nongnu.org, =?utf-8?q?Philippe?= =?utf-8?q?_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Peter Foley Match the other error handling in this function. Fixes: e7b347d0bf6 ("net: detect errors from probing vnet hdr flag for TAP devices") Reviewed-by: Patrick Venture Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Peter Foley Signed-off-by: Jason Wang --- net/tap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/tap.c b/net/tap.c index f716be3..c5cbeaa 100644 --- a/net/tap.c +++ b/net/tap.c @@ -900,6 +900,7 @@ int net_init_tap(const Netdev *netdev, const char *name, if (i == 0) { vnet_hdr = tap_probe_vnet_hdr(fd, errp); if (vnet_hdr < 0) { + ret = -1; goto free_fail; } } else if (vnet_hdr != tap_probe_vnet_hdr(fd, NULL)) {