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Allow the attach routine to fail gracefully and not panic the system.

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This commit is contained in:
Warner Losh 2009-03-26 17:36:19 +00:00
parent d2b2128a28
commit ba32f0ff83
1 changed files with 2 additions and 1 deletions
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3
sys/dev/ed/if_ed.c
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@ -389,7 +389,8 @@ ed_detach(device_t dev)
callout_drain(&sc->tick_ch);
ether_ifdetach(ifp);
}
bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
if (sc->irq_res != NULL && sc->irq_handle)
bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
ed_release_resources(dev);
ED_LOCK_DESTROY(sc);
bus_generic_detach(dev);