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Device enumeration may encounter transient errors such as ENXIO when devices appear or disappear concurrently. These conditions represent expected "device absent" races and should be treated uniformly across the enumeration logic. This change replaces the ENODEV-specific check with ERRNO_IS_NEG_DEVICE_ABSENT(), ensuring that all expected disappearance conditions are handled consistently. Unexpected errors are still propagated, while expected races are ignored without aborting the enumeration.
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