> > Yes, meaning is different, see above. > > So that's rather convoluted: > > atomic64_inc_not_zero(): returns 1 on successful increase, 0 on > failure > sgx_inc_usage_count(): returns 0 on successful increase, 1 on > failure > sgx_open(): returns 0 on successful increase, -EBUSY > on failure > > Could we at least standardize sgx_inc_usage_count() on -EBUSY in the > failure case, so it's a more obvious pattern: > > + ret = sgx_inc_usage_count(); > + if (ret < 0) > + return ret; >
Yes, will rewrite accordingly. Especially since I have to return two different error codes into sgx_open() now to indicate different nature of issues with running EUDPATESVN: temporal failure due to lack of entropy (-EAGAIN) and potentially persistent problem when getting unexpected error codes (-EIO). Best Regards, Elena.