From nobody Mon May 11 02:55:33 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3911C433F5 for ; Sat, 16 Apr 2022 20:52:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233055AbiDPUyT (ORCPT ); Sat, 16 Apr 2022 16:54:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233052AbiDPUyR (ORCPT ); Sat, 16 Apr 2022 16:54:17 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9BF3732ED9 for ; Sat, 16 Apr 2022 13:51:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1650142303; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=MCs9sayLGT9Brlcum9GwaQ0BqXD9O9q7oXRvk2xKu30=; b=Qc1Tj5ly84t4M6/6aziK2YgM2v82aPPxMskQ+GjUO6tLhUQdkQC2G5h+PaaUrdPIfdKOxW 7npMF9OJ1TQ9tcJFyIn/xdo6yWKVY55SXIm5GUP0Aztz00UWuLmUbh2qK0oEAiKVCUAZkm 5+4zwkh4LHwnzKDhH54i6W70LYrYThY= Received: from mail-qv1-f71.google.com (mail-qv1-f71.google.com [209.85.219.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-462-uw_5I6H3Nbuca5ko7h5f-w-1; Sat, 16 Apr 2022 16:51:42 -0400 X-MC-Unique: uw_5I6H3Nbuca5ko7h5f-w-1 Received: by mail-qv1-f71.google.com with SMTP id f18-20020ad442d2000000b0044642dd1d7eso2059918qvr.3 for ; Sat, 16 Apr 2022 13:51:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MCs9sayLGT9Brlcum9GwaQ0BqXD9O9q7oXRvk2xKu30=; b=pUtuDEHvefbp6HZsSDdIOFrnIOSBn5F/8Mf5tiPnHkPGkQ/rTTtb6ipxeKwGH+xa5b JnRL3acHMR84hGlnT5wf5ge1SGluFFiqPY/vNYGr5bMJm6Ka/g92x0PDSW/IQK9eZQCV CsP3frwqjiE+WRLWB5zOYLwOFlRe5sPKBXmCRrhosod0mJDzRugZYLrRa8cOyZKkkG0p RkV+rO8p69cw+APeQQ9J4dTP7is0IOYkREoW9F+5lOLRsEAHuCygdbcWDu8rYTKn4Pb3 zi0aqvCvShq9zcbxHiSgeZp+/OHnRNNYwatR5prlWjPEIPY6+pqEJPlnWGk3IpMDqfdj NsSA== X-Gm-Message-State: AOAM531vDfE7crQFYEmlJzKj9ZvBJUswN3275RECXMiFPoU1rhIGmJvN cNC4bdt8NpbfJdT+NSIKbJ7LKIu7xQHPe7651HlgpF7P+0fDjoKpTD4wTOQ86pTYquMUBy44BgE jZSA8eOY7R4ec0fVRfK7rDuMn X-Received: by 2002:a05:6214:1c4b:b0:446:3f7e:a35f with SMTP id if11-20020a0562141c4b00b004463f7ea35fmr3645560qvb.122.1650142301786; Sat, 16 Apr 2022 13:51:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyTuW3w9sGv8eepPDQ4d/FajXjVBd+8BPaPmfU4U9Pg98GQ/3Wfo5Tqv35AdG630N6byhpPMQ== X-Received: by 2002:a05:6214:1c4b:b0:446:3f7e:a35f with SMTP id if11-20020a0562141c4b00b004463f7ea35fmr3645551qvb.122.1650142301616; Sat, 16 Apr 2022 13:51:41 -0700 (PDT) Received: from dell-per740-01.7a2m.lab.eng.bos.redhat.com (nat-pool-bos-t.redhat.com. [66.187.233.206]) by smtp.gmail.com with ESMTPSA id bj12-20020a05620a190c00b0069c7df40747sm4079774qkb.133.2022.04.16.13.51.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Apr 2022 13:51:41 -0700 (PDT) From: Tom Rix To: broonie@kernel.org, nathan@kernel.org, ndesaulniers@google.com, paul.kocialkowski@bootlin.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Tom Rix Subject: [PATCH] spi: initialize status to success Date: Sat, 16 Apr 2022 16:51:32 -0400 Message-Id: <20220416205132.295779-1-trix@redhat.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Clang static analysis reports this issue spi.c:3583:2: warning: 2nd function call argument is an uninitialized value trace_spi_setup(spi, status); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ It is possible that status is never set because its function level setting was removed by the commit listed in the Fixes: tag. Assume that setting 8 bits-per-word is ok and initialize the status to 0. Fixes: b3fe2e516741 ("spi: core: Only check bits_per_word validity when exp= licitly provided") Signed-off-by: Tom Rix Reviewed-by: Nathan Chancellor --- drivers/spi/spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 563a56ce34a0..890ff46c784a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3475,7 +3475,7 @@ static int __spi_validate_bits_per_word(struct spi_co= ntroller *ctlr, int spi_setup(struct spi_device *spi) { unsigned bad_bits, ugly_bits; - int status; + int status =3D 0; =20 /* * Check mode to prevent that any two of DUAL, QUAD and NO_MOSI/MISO --=20 2.27.0