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More DIAGNOSTIC paranoia.

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This commit is contained in:
augustss 1999-09-16 19:20:34 +00:00
parent 75d8e5904a
commit a4457e18b3
1 changed files with 8 additions and 1 deletions
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9
sys/dev/usb/usb_subr.c
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@ -1,4 +1,4 @@
/* $NetBSD: usb_subr.c,v 1.47 1999/09/15 10:25:31 augustss Exp $ */
/* $NetBSD: usb_subr.c,v 1.48 1999/09/16 19:20:34 augustss Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -1198,6 +1198,13 @@ usb_disconnect_port(up)
DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n",
up, dev, up->portno));
#ifdef DIAGNOSTIC
if (!dev) {
printf("usb_disconnect_port: no device\n");
return;
}
#endif
if (!dev->cdesc) {
/* Partially attached device, just drop it. */
dev->bus->devices[dev->address] = 0;