Date: Sun, 3 Nov 2019 20:46:20 +0000 (UTC) From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354297 - head/sys/dev/ichiic Message-ID: <201911032046.xA3KkKaD059028@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: wulf Date: Sun Nov 3 20:46:20 2019 New Revision: 354297 URL: https://svnweb.freebsd.org/changeset/base/354297 Log: [ig4] Ignore stray interrupts Modified: head/sys/dev/ichiic/ig4_iic.c Modified: head/sys/dev/ichiic/ig4_iic.c ============================================================================== --- head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:45:25 2019 (r354296) +++ head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:46:20 2019 (r354297) @@ -685,9 +685,12 @@ ig4iic_intr(void *cookie) ig4iic_softc_t *sc = cookie; mtx_lock(&sc->io_lock); - set_intr_mask(sc, 0); - reg_read(sc, IG4_REG_CLR_INTR); - wakeup(sc); + /* Ignore stray interrupts */ + if (sc->intr_mask != 0 && reg_read(sc, IG4_REG_INTR_STAT) != 0) { + set_intr_mask(sc, 0); + reg_read(sc, IG4_REG_CLR_INTR); + wakeup(sc); + } mtx_unlock(&sc->io_lock); }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201911032046.xA3KkKaD059028>