Check streams are valid before accessing them
Pointers to DeviceStream objects were dereferenced when they were invalid, e.g. non-local stream is not valid unless multiple domains exist.
Fixes #5087 (closed)
Edited by Mark Abraham
Pointers to DeviceStream objects were dereferenced when they were invalid, e.g. non-local stream is not valid unless multiple domains exist.
Fixes #5087 (closed)