From owner-svn-src-head@FreeBSD.ORG Fri Nov 18 21:22:43 2011 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BA643106564A; Fri, 18 Nov 2011 21:22:43 +0000 (UTC) (envelope-from marius@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 907878FC0C; Fri, 18 Nov 2011 21:22:43 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id pAILMhx3099597; Fri, 18 Nov 2011 21:22:43 GMT (envelope-from marius@svn.freebsd.org) Received: (from marius@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id pAILMh3G099595; Fri, 18 Nov 2011 21:22:43 GMT (envelope-from marius@svn.freebsd.org) Message-Id: <201111182122.pAILMh3G099595@svn.freebsd.org> From: Marius Strobl Date: Fri, 18 Nov 2011 21:22:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r227685 - head/sys/dev/dc X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Nov 2011 21:22:43 -0000 Author: marius Date: Fri Nov 18 21:22:43 2011 New Revision: 227685 URL: http://svn.freebsd.org/changeset/base/227685 Log: - There's no need to ignore the return value of mii_attach(9) when attaching dcphy(4) (CID 9283). - In dc_detach(), check whether ifp is NULL as dc_attach() may call the former without ifp being allocated (CID 4288). Found with: Coverity Prevent(tm) Modified: head/sys/dev/dc/if_dc.c Modified: head/sys/dev/dc/if_dc.c ============================================================================== --- head/sys/dev/dc/if_dc.c Fri Nov 18 21:13:43 2011 (r227684) +++ head/sys/dev/dc/if_dc.c Fri Nov 18 21:22:43 2011 (r227685) @@ -2456,9 +2456,6 @@ dc_attach(device_t dev) if (sc->dc_pmode != DC_PMODE_SIA) sc->dc_pmode = DC_PMODE_SYM; sc->dc_flags |= DC_21143_NWAY; - mii_attach(dev, &sc->dc_miibus, ifp, dc_ifmedia_upd, - dc_ifmedia_sts, BMSR_DEFCAPMASK, MII_PHY_ANY, - MII_OFFSET_ANY, 0); /* * For non-MII cards, we need to have the 21143 * drive the LEDs. Except there are some systems @@ -2469,7 +2466,9 @@ dc_attach(device_t dev) if (!(pci_get_subvendor(dev) == 0x1033 && pci_get_subdevice(dev) == 0x8028)) sc->dc_flags |= DC_TULIP_LEDS; - error = 0; + error = mii_attach(dev, &sc->dc_miibus, ifp, dc_ifmedia_upd, + dc_ifmedia_sts, BMSR_DEFCAPMASK, MII_PHY_ANY, + MII_OFFSET_ANY, 0); } if (error) { @@ -2538,7 +2537,7 @@ dc_detach(device_t dev) ifp = sc->dc_ifp; #ifdef DEVICE_POLLING - if (ifp->if_capenable & IFCAP_POLLING) + if (ifp != NULL && ifp->if_capenable & IFCAP_POLLING) ether_poll_deregister(ifp); #endif @@ -2562,7 +2561,7 @@ dc_detach(device_t dev) if (sc->dc_res) bus_release_resource(dev, DC_RES, DC_RID, sc->dc_res); - if (ifp) + if (ifp != NULL) if_free(ifp); dc_dma_free(sc); @@ -2612,7 +2611,6 @@ dc_list_tx_init(struct dc_softc *sc) return (0); } - /* * Initialize the RX descriptors and allocate mbufs for them. Note that * we arrange the descriptors in a closed ring, so that the last descriptor