mem: Provide better diagnostic for unconnected port
When _masterPort is null, a message to that effect is more helpful than a segfault.
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@ -404,7 +404,11 @@ class SlavePort : public BaseSlavePort
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/**
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* Called by the owner to send a range change
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*/
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void sendRangeChange() const { _masterPort->recvRangeChange(); }
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void sendRangeChange() const {
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if (!_masterPort)
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fatal("%s cannot sendRangeChange() without master port", name());
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_masterPort->recvRangeChange();
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}
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/**
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* Get a list of the non-overlapping address ranges the owner is
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