From patchwork Tue Sep 24 13:05:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1988949 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=aiopCLVL; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4XCgDw6tK0z1xst for ; Tue, 24 Sep 2024 23:09:36 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1st5Gf-0005Xg-2P; Tue, 24 Sep 2024 09:07:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1st5G1-0002D0-5M for qemu-devel@nongnu.org; Tue, 24 Sep 2024 09:07:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1st5Fx-0000YU-3l for qemu-devel@nongnu.org; Tue, 24 Sep 2024 09:07:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1727183222; 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=N8oWnyTYg8AgJWFNvI249dMhAmQigPL79FgF3CC8NN0=; b=aiopCLVLIJH1mEjFyEV5I9aUhR65PuZ7Hybg6u2/kgI/EiReMhNotdvwfXlS4BRWBcMmbE iclmg90WRIVYtxFZwo01/6c5J1ltEfAbQyjDFSJ3W7pH2Ga37Ug43iOv0+2BTINooScdsV idVXZXnsRe7N+yJPKo1OWi1WoQaMSC4= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-70-9mhNB2XGMKeO-mP1wQPUiA-1; Tue, 24 Sep 2024 09:06:57 -0400 X-MC-Unique: 9mhNB2XGMKeO-mP1wQPUiA-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (unknown [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C2BB51918DC0; Tue, 24 Sep 2024 13:06:54 +0000 (UTC) Received: from localhost (unknown [10.39.208.3]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 07DBE197701F; Tue, 24 Sep 2024 13:06:49 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Song Gao , Peter Xu , Bin Meng , Mahmoud Mandour , Hyman Huang , Klaus Jensen , Alexandre Iooss , =?utf-8?q?Alex_Benn=C3=A9e?= , Marcel Apfelbaum , =?utf-8?q?Daniel_P=2E_Berran?= =?utf-8?q?g=C3=A9?= , John Snow , Jesper Devantier , Bin Meng , Greg Kurz , =?utf-8?q?Eugenio_P=C3=A9rez?= , Stefan Hajnoczi , Yuval Shaia , "Michael S. Tsirkin" , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Paolo Bonzini , Vladimir Sementsov-Ogievskiy , Christian Schoenebeck , Pierrick Bouvier , Fabiano Rosas , Keith Busch , Eric Blake , qemu-block@nongnu.org, Kevin Wolf , Laurent Vivier , Gerd Hoffmann , Fam Zheng , Eduardo Habkost , Stefano Garzarella , Hanna Reitz , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= Subject: [PATCH v2 10/22] hw/sdhci: fix -Werror=maybe-uninitialized false-positive Date: Tue, 24 Sep 2024 17:05:41 +0400 Message-ID: <20240924130554.749278-11-marcandre.lureau@redhat.com> In-Reply-To: <20240924130554.749278-1-marcandre.lureau@redhat.com> References: <20240924130554.749278-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.133.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.09, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau ../hw/sd/sdhci.c:846:16: error: ‘res’ may be used uninitialized [-Werror=maybe-uninitialized] False-positive, because "length" is non-null. Signed-off-by: Marc-André Lureau --- hw/sd/sdhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 87122e4245..ed01499391 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -747,7 +747,7 @@ static void sdhci_do_adma(SDHCIState *s) const uint16_t block_size = s->blksize & BLOCK_SIZE_MASK; const MemTxAttrs attrs = { .memory = true }; ADMADescr dscr = {}; - MemTxResult res; + MemTxResult res = MEMTX_ERROR; int i; if (s->trnmod & SDHC_TRNS_BLK_CNT_EN && !s->blkcnt) {