Author: avg Date: Wed Sep 21 16:26:59 2016 New Revision: 306122 URL: https://svnweb.freebsd.org/changeset/base/306122
Log: MFC r305604: intpm: better clean up resources after a failed attachment Modified: stable/11/sys/dev/intpm/intpm.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/intpm/intpm.c ============================================================================== --- stable/11/sys/dev/intpm/intpm.c Wed Sep 21 16:23:31 2016 (r306121) +++ stable/11/sys/dev/intpm/intpm.c Wed Sep 21 16:26:59 2016 (r306122) @@ -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) { @@ -309,12 +326,15 @@ 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 */ @@ -323,30 +343,22 @@ 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); } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"