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Avoid doing Very Bad Things by passing a horrible IRQ value to

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npxprobe1().  Fixes a problem on IBM Thinkpads reported by
Chuck Cranor.
This commit is contained in:
thorpej 2001-01-21 04:55:48 +00:00
parent cdc6b98589
commit ccea4c274b
1 changed files with 8 additions and 2 deletions
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10
sys/arch/i386/isa/npx_isa.c
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@ -1,4 +1,4 @@
/* $NetBSD: npx_isa.c,v 1.1 2000/06/16 03:47:24 thorpej Exp $ */
/* $NetBSD: npx_isa.c,v 1.2 2001/01/21 04:55:48 thorpej Exp $ */
/*-
* Copyright (c) 1994, 1995, 1998 Charles M. Hannum. All rights reserved.
@ -77,6 +77,12 @@ npx_isa_probe(struct device *parent, struct cfdata *match, void *aux)
bus_space_unmap(ia->ia_iot, ioh, ia->ia_iosize);
/*
* Remember our result -- we don't want to have to npxprobe1()
* again (especially if we've zapped the IRQ).
*/
ia->ia_aux = (void *)(u_long)result;
return (result != NPX_NONE);
}
@ -93,7 +99,7 @@ npx_isa_attach(struct device *parent, struct device *self, void *aux)
panic("npxattach: unable to map I/O space");
}
sc->sc_type = npxprobe1(sc->sc_iot, sc->sc_ioh, ia->ia_irq);
sc->sc_type = (u_long) ia->ia_aux;
switch (sc->sc_type) {
case NPX_INTERRUPT: