From patchwork Fri May 1 13:21:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 226491 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC651C4724C for ; Fri, 1 May 2020 13:58:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE8D4206D6 for ; Fri, 1 May 2020 13:58:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588341530; bh=FrPbYjdAs9QBWu+sGeZq7heSAjE/44KWUKf0zQO/x+A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Q7W1DHtrKwZUo8O2E1ucWdfVDb8LCmKMO8h0TtjGBBj7YzRhkzl5sE441R9Bkr82h NlfqBTr+aMX4Y3O6I7zbKY1xR14ioqVuuVoWLrdEqnC5KL5iDhHzdZyXGvq7sFqq3m DSjleHGZK1xrpNM47hk/Vs4eZoh3J52uyvRMC7Oo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729300AbgEANaB (ORCPT ); Fri, 1 May 2020 09:30:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:53756 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729156AbgEAN36 (ORCPT ); Fri, 1 May 2020 09:29:58 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7F545208D6; Fri, 1 May 2020 13:29:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588339798; bh=FrPbYjdAs9QBWu+sGeZq7heSAjE/44KWUKf0zQO/x+A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ic+lKbGrJpN31HJ8jq6REsDbEOT6s9RIOSxT1ARR13PxOy1UFgVm990oIqj/jpiEP JMjO5yUfuNtFY2Q6R5xQugDO2Lo0JTOPRszKLvHVJJ6J1pawXJJqiMrnRWsiwgWOC9 BZJkeD2RezsXXHj6tzZwr25OtTWm1AbZYQ8Hiklo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jason Gunthorpe , "David S. Miller" Subject: [PATCH 4.9 64/80] net/cxgb4: Check the return from t4_query_params properly Date: Fri, 1 May 2020 15:21:58 +0200 Message-Id: <20200501131532.746764921@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200501131513.810761598@linuxfoundation.org> References: <20200501131513.810761598@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jason Gunthorpe commit c799fca8baf18d1bbbbad6c3b736eefbde8bdb90 upstream. Positive return values are also failures that don't set val, although this probably can't happen. Fixes gcc 10 warning: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c: In function ‘t4_phy_fw_ver’: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:3747:14: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized] 3747 | *phy_fw_ver = val; Fixes: 01b6961410b7 ("cxgb4: Add PHY firmware support for T420-BT cards") Signed-off-by: Jason Gunthorpe Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -3400,7 +3400,7 @@ int t4_phy_fw_ver(struct adapter *adap, FW_PARAMS_PARAM_Z_V(FW_PARAMS_PARAM_DEV_PHYFW_VERSION)); ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, ¶m, &val); - if (ret < 0) + if (ret) return ret; *phy_fw_ver = val; return 0;