networkd: fix reporting errors from hostnamed
The return value may be -EINVAL or a positive errno from the dbus message. Check both ranges, otherwise most errors are silently ignored.
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@ -835,7 +835,9 @@ static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata,
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r = sd_bus_message_get_errno(m);
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if (r < 0)
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log_warning_link(link, "Could not set hostname: %s", strerror(-r));
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r = -r;
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if (r > 0)
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log_warning_link(link, "Could not set hostname: %s", strerror(r));
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return 1;
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}
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