From owner-svn-src-all@freebsd.org Sat May 4 09:30:04 2019 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 2DED01588135; Sat, 4 May 2019 09:30:04 +0000 (UTC) (envelope-from hselasky@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 C89308144A; Sat, 4 May 2019 09:30:03 +0000 (UTC) (envelope-from hselasky@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 9C54F65FA; Sat, 4 May 2019 09:30:03 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x449U3b6076866; Sat, 4 May 2019 09:30:03 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x449U39k076865; Sat, 4 May 2019 09:30:03 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201905040930.x449U39k076865@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Sat, 4 May 2019 09:30:03 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r347088 - head/sys/compat/linuxkpi/common/src X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/compat/linuxkpi/common/src X-SVN-Commit-Revision: 347088 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: C89308144A X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.96)[-0.958,0]; 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: Sat, 04 May 2019 09:30:04 -0000 Author: hselasky Date: Sat May 4 09:30:03 2019 New Revision: 347088 URL: https://svnweb.freebsd.org/changeset/base/347088 Log: Fix regression issue after r346645 in the LinuxKPI. Properly handle error case when mapping DMA address fails. Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/src/linux_pci.c Modified: head/sys/compat/linuxkpi/common/src/linux_pci.c ============================================================================== --- head/sys/compat/linuxkpi/common/src/linux_pci.c Sat May 4 09:28:11 2019 (r347087) +++ head/sys/compat/linuxkpi/common/src/linux_pci.c Sat May 4 09:30:03 2019 (r347088) @@ -480,10 +480,15 @@ linux_dma_alloc_coherent(struct device *dev, size_t si align = PAGE_SIZE << get_order(size); mem = (void *)kmem_alloc_contig(size, flag, 0, high, align, 0, VM_MEMATTR_DEFAULT); - if (mem) + if (mem != NULL) { *dma_handle = linux_dma_map_phys(dev, vtophys(mem), size); - else + if (*dma_handle == 0) { + kmem_free((vm_offset_t)mem, size); + mem = NULL; + } + } else { *dma_handle = 0; + } return (mem); }