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Avoid null reference, from Nick Hibma, FreeBSD.

This commit is contained in:
augustss 1999-09-02 18:13:50 +00:00
parent 46fd81350a
commit 60179e2a13
1 changed files with 9 additions and 7 deletions
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16
sys/dev/usb/uhub.c
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@ -1,4 +1,4 @@
/* $NetBSD: uhub.c,v 1.24 1999/08/28 21:42:35 augustss Exp $ */ /* $NetBSD: uhub.c,v 1.25 1999/09/02 18:13:50 augustss Exp $ */
/* /*
* Copyright (c) 1998 The NetBSD Foundation, Inc. * Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -466,12 +466,14 @@ uhub_disconnect_port(up)
return; return;
} }
hubname = USBDEVNAME(*up->parent->subdevs[0]); if (dev->subdevs) {
for (i = 0; dev->subdevs[i]; i++) { hubname = USBDEVNAME(*up->parent->subdevs[0]);
printf("%s: at %s port %d (addr %d) disconnected\n", for (i = 0; dev->subdevs[i]; i++) {
USBDEVNAME(*dev->subdevs[i]), hubname, printf("%s: at %s port %d (addr %d) disconnected\n",
up->portno, dev->address); USBDEVNAME(*dev->subdevs[i]), hubname,
config_detach(dev->subdevs[i], DETACH_FORCE); up->portno, dev->address);
config_detach(dev->subdevs[i], DETACH_FORCE);
}
} }
dev->bus->devices[dev->address] = 0; dev->bus->devices[dev->address] = 0;