Date: Sun, 22 Dec 2019 20:04:35 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r356023 - stable/12/sys/dev/iicbus Message-ID: <201912222004.xBMK4ZHO059625@repo.freebsd.org>
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Author: ian Date: Sun Dec 22 20:04:35 2019 New Revision: 356023 URL: https://svnweb.freebsd.org/changeset/base/356023 Log: MFC r355688: If device_delete_children() returns an error, bail on the rest of the detach work and return the error. Especially don't call iicbus_reset() since the most likely cause of failing to detach children is that one of them has IO in progress. Modified: stable/12/sys/dev/iicbus/iicbus.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/iicbus/iicbus.c ============================================================================== --- stable/12/sys/dev/iicbus/iicbus.c Sun Dec 22 19:30:13 2019 (r356022) +++ stable/12/sys/dev/iicbus/iicbus.c Sun Dec 22 20:04:35 2019 (r356023) @@ -134,10 +134,11 @@ static int iicbus_detach(device_t dev) { struct iicbus_softc *sc = IICBUS_SOFTC(dev); + int err; + if ((err = device_delete_children(dev)) != 0) + return (err); iicbus_reset(dev, IIC_FASTEST, 0, NULL); - bus_generic_detach(dev); - device_delete_children(dev); mtx_destroy(&sc->lock); return (0); }
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