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iflib: allow clone detach if not yet init
If we hit an error during init, then we'll unwind our state and attempt to detach the device -- don't block it. This was discovered by creating a wg0 with missing parameters; said failure ended up leaving this orphaned device in place and ended up panicking the system upon enumeration of the dev.* sysctl space. Reviewed by: gallatin, markj MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D29145
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@ -83,7 +83,8 @@ iflib_pseudo_detach(device_t dev)
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if_ctx_t ctx;
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ctx = device_get_softc(dev);
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if ((iflib_get_flags(ctx) & IFC_IN_DETACH) == 0)
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if ((iflib_get_flags(ctx) & (IFC_INIT_DONE | IFC_IN_DETACH)) ==
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IFC_INIT_DONE)
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return (EBUSY);
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return (0);
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}
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