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);
}
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