Date: Thu, 31 Oct 2024 19:52:58 GMT From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 13a1dbfed57b - main - vf_i2c: Don't hold a mutex across bus_generic_detach Message-ID: <202410311952.49VJqwhD006030@gitrepo.freebsd.org>
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The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=13a1dbfed57b167a6dc4d68b60115eb0e070b9b6 commit 13a1dbfed57b167a6dc4d68b60115eb0e070b9b6 Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2024-10-31 19:49:41 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2024-10-31 19:49:41 +0000 vf_i2c: Don't hold a mutex across bus_generic_detach This was also leaking the lock if bus_generic_detach failed. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D47221 --- sys/dev/iicbus/controller/vybrid/vf_i2c.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/sys/dev/iicbus/controller/vybrid/vf_i2c.c b/sys/dev/iicbus/controller/vybrid/vf_i2c.c index 0a0b9d0cb35a..ea0e1eeac7fb 100644 --- a/sys/dev/iicbus/controller/vybrid/vf_i2c.c +++ b/sys/dev/iicbus/controller/vybrid/vf_i2c.c @@ -207,13 +207,6 @@ i2c_detach(device_t dev) sc = device_get_softc(dev); vf_i2c_dbg(sc, "i2c detach\n"); - mtx_lock(&sc->mutex); - - if (sc->freq == 0) { - vf_i2c_dbg(sc, "Writing 0x00 to clock divider register\n"); - WRITE1(sc, I2C_IBFD, 0x00); - } - error = bus_generic_detach(dev); if (error != 0) { device_printf(dev, "cannot detach child devices.\n"); @@ -226,6 +219,13 @@ i2c_detach(device_t dev) return (error); } + mtx_lock(&sc->mutex); + + if (sc->freq == 0) { + vf_i2c_dbg(sc, "Writing 0x00 to clock divider register\n"); + WRITE1(sc, I2C_IBFD, 0x00); + } + bus_release_resources(dev, i2c_spec, sc->res); mtx_unlock(&sc->mutex);
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