Return codes and reason codes

When CSRIRP returns control to your program, return_code contains a return and reason_code contains a reason code. The following table identifies return code and reason code combinations and tells what each means.

Return and reason codes, in hexadecimal, from CSRIRP are:

Return Code	Reason Code	Meaning
00	None	CSRIRP completed successfully.
04	xx0001xx	CSRIRP completed successfully; however, the system did not accept the reference pattern the caller specified. The system decided that bringing in pages of 4096 bytes would be more efficient.
08	xx0002xx	Unsuccessful completion. The range that the caller specified overlaps the range that a previous request specified.
08	xx0003xx	Unsuccessful completion. The number of CSRIRP requests for the user exceeds 100, the maximum number the system allows.
08	xx0004xx	Unsuccessful completion. Storage is not available for the CSRIRP service.
08	00000004	Unsuccessful completion. The direction that the caller specified is not valid.