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[ig4] Ignore stray interrupts

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This commit is contained in:
wulf 2019-11-03 20:46:20 +00:00
parent b1f9a0d5db
commit afd484b49d
1 changed files with 6 additions and 3 deletions
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9
sys/dev/ichiic/ig4_iic.c
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@ -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);
}