From owner-svn-src-all@freebsd.org Thu Sep 8 12:27:35 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6E13EBD08B3; Thu, 8 Sep 2016 12:27:35 +0000 (UTC) (envelope-from avg@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 mx1.freebsd.org (Postfix) with ESMTPS id 258A6E97; Thu, 8 Sep 2016 12:27:35 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u88CRYp3025581; Thu, 8 Sep 2016 12:27:34 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u88CRYHN025580; Thu, 8 Sep 2016 12:27:34 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201609081227.u88CRYHN025580@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Thu, 8 Sep 2016 12:27:34 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305604 - head/sys/dev/intpm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 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: Thu, 08 Sep 2016 12:27:35 -0000 Author: avg Date: Thu Sep 8 12:27:34 2016 New Revision: 305604 URL: https://svnweb.freebsd.org/changeset/base/305604 Log: intpm: better clean up resources after a failed attachment bus_generic_detach() fails when called from attach method thus preventing further clean up actions. MFC after: 1 week Modified: head/sys/dev/intpm/intpm.c Modified: head/sys/dev/intpm/intpm.c ============================================================================== --- head/sys/dev/intpm/intpm.c Thu Sep 8 12:24:46 2016 (r305603) +++ head/sys/dev/intpm/intpm.c Thu Sep 8 12:27:34 2016 (r305604) @@ -199,6 +199,23 @@ sb8xx_attach(device_t dev) return (0); } +static void +intsmb_release_resources(device_t dev) +{ + struct intsmb_softc *sc = device_get_softc(dev); + + if (sc->smbus) + device_delete_child(dev, sc->smbus); + if (sc->irq_hand) + bus_teardown_intr(dev, sc->irq_res, sc->irq_hand); + if (sc->irq_res) + bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res); + if (sc->io_res) + bus_release_resource(dev, SYS_RES_IOPORT, sc->io_rid, + sc->io_res); + mtx_destroy(&sc->lock); +} + static int intsmb_attach(device_t dev) { @@ -311,12 +328,15 @@ no_intr: sc->isbusy = 0; sc->smbus = device_add_child(dev, "smbus", -1); if (sc->smbus == NULL) { + device_printf(dev, "failed to add smbus child\n"); error = ENXIO; goto fail; } error = device_probe_and_attach(sc->smbus); - if (error) + if (error) { + device_printf(dev, "failed to probe+attach smbus child\n"); goto fail; + } #ifdef ENABLE_ALART /* Enable Arart */ @@ -325,30 +345,22 @@ no_intr: return (0); fail: - intsmb_detach(dev); + intsmb_release_resources(dev); return (error); } static int intsmb_detach(device_t dev) { - struct intsmb_softc *sc = device_get_softc(dev); int error; error = bus_generic_detach(dev); - if (error) + if (error) { + device_printf(dev, "bus detach failed\n"); return (error); + } - if (sc->smbus) - device_delete_child(dev, sc->smbus); - if (sc->irq_hand) - bus_teardown_intr(dev, sc->irq_res, sc->irq_hand); - if (sc->irq_res) - bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res); - if (sc->io_res) - bus_release_resource(dev, SYS_RES_IOPORT, sc->io_rid, - sc->io_res); - mtx_destroy(&sc->lock); + intsmb_release_resources(dev); return (0); }