More on relative priorities of Cryptoki errors

In general, when a Cryptoki call is made, error codes from Section 11.1.1 (other than CKR_OK) take precedence over error codes from Section 11.1.2, which take precedence over error codes from Section 11.1.3, which take precedence over error codes from Section 11.1.6. One minor implication of this is that functions that use a session handle (i.e., most functions!) never return the error code CKR_TOKEN_NOT_PRESENT (they return CKR_SESSION_HANDLE_INVALID instead). Other than these precedences, if more than one error code applies to the result of a Cryptoki call, any of the applicable error codes may be returned. Exceptions to this rule will be explicitly mentioned in the descriptions of functions.

RSA Security Inc. Public-Key Cryptography Standards - PKCS#11 - v210