[src/trunk]: src/sys/dev/usb Fix PR8666, to verbose diagnostics.

[augustss <augustss%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/96b78042ef23
branches:  trunk
changeset: 477587:96b78042ef23
user:      augustss <augustss%NetBSD.org@localhost>
date:      Sat Oct 23 00:21:01 1999 +0000

description:
Fix PR8666, to verbose diagnostics.

diffstat:

 sys/dev/usb/uhci.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r dd57cf37c960 -r 96b78042ef23 sys/dev/usb/uhci.c
--- a/sys/dev/usb/uhci.c        Fri Oct 22 21:14:34 1999 +0000
+++ b/sys/dev/usb/uhci.c        Sat Oct 23 00:21:01 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uhci.c,v 1.61 1999/10/17 15:31:00 augustss Exp $       */
+/*     $NetBSD: uhci.c,v 1.62 1999/10/23 00:21:01 augustss Exp $       */
 
 /*
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -846,12 +846,15 @@
        }
 #endif
 
+       status = UREAD2(sc, UHCI_STS);
+       if (status == 0)        /* The interrupt was not for us. */
+               return (0);
+
 #if defined(DIAGNOSTIC) && defined(__NetBSD__)
        if (sc->sc_suspend != PWR_RESUME)
                printf("uhci_intr: suspended sts=0x%x\n", status);
 #endif
 
-       status = UREAD2(sc, UHCI_STS);
        ack = 0;
        if (status & UHCI_STS_USBINT)
                ack |= UHCI_STS_USBINT;