From owner-svn-src-all@freebsd.org Fri Dec 21 16:11:19 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3D160134E8BE; Fri, 21 Dec 2018 16:11:19 +0000 (UTC) (envelope-from arybchik@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 03C386FCAA; Fri, 21 Dec 2018 16:11:19 +0000 (UTC) (envelope-from arybchik@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id EA286FC89; Fri, 21 Dec 2018 16:11:18 +0000 (UTC) (envelope-from arybchik@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBLGBIdT072346; Fri, 21 Dec 2018 16:11:18 GMT (envelope-from arybchik@FreeBSD.org) Received: (from arybchik@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBLGBIU5072345; Fri, 21 Dec 2018 16:11:18 GMT (envelope-from arybchik@FreeBSD.org) Message-Id: <201812211611.wBLGBIU5072345@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: arybchik set sender to arybchik@FreeBSD.org using -f From: Andrew Rybchenko Date: Fri, 21 Dec 2018 16:11:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r342329 - stable/12/sys/dev/sfxge/common X-SVN-Group: stable-12 X-SVN-Commit-Author: arybchik X-SVN-Commit-Paths: stable/12/sys/dev/sfxge/common X-SVN-Commit-Revision: 342329 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 03C386FCAA X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.956,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Dec 2018 16:11:19 -0000 Author: arybchik Date: Fri Dec 21 16:11:18 2018 New Revision: 342329 URL: https://svnweb.freebsd.org/changeset/base/342329 Log: MFC r340894 sfxge(4): fix PreFAST static analysis warning (C6001) Fix warning "C6001: Using uninitialized memory '*sensor_maskp'" which could occur when the npages argument to efx_mcdi_sensor_info() is less than or equal to zero. Submitted by: Andrew Lee Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18128 Modified: stable/12/sys/dev/sfxge/common/mcdi_mon.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/sfxge/common/mcdi_mon.c ============================================================================== --- stable/12/sys/dev/sfxge/common/mcdi_mon.c Fri Dec 21 16:10:31 2018 (r342328) +++ stable/12/sys/dev/sfxge/common/mcdi_mon.c Fri Dec 21 16:11:18 2018 (r342329) @@ -397,6 +397,11 @@ efx_mcdi_sensor_info( EFSYS_ASSERT(sensor_maskp != NULL); + if (npages < 1) { + rc = EINVAL; + goto fail1; + } + for (page = 0; page < npages; page++) { uint32_t mask; @@ -413,7 +418,7 @@ efx_mcdi_sensor_info( if (req.emr_rc != 0) { rc = req.emr_rc; - goto fail1; + goto fail2; } mask = MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK); @@ -421,18 +426,20 @@ efx_mcdi_sensor_info( if ((page != (npages - 1)) && ((mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) == 0)) { rc = EINVAL; - goto fail2; + goto fail3; } sensor_maskp[page] = mask; } if (sensor_maskp[npages - 1] & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) { rc = EINVAL; - goto fail3; + goto fail4; } return (0); +fail4: + EFSYS_PROBE(fail4); fail3: EFSYS_PROBE(fail3); fail2: