On 16/10/2023 20:11, Jason Gunthorpe wrote: > On Sat, Oct 07, 2023 at 03:40:50AM +0000, Zhijian Li (Fujitsu) wrote: >> +rdma-core >> >> >> Is global variable *errno* reliable when the documentation only states >> "returns 0 on success, or the value of errno on failure (which indicates the >> failure reason)." > > I think the intention of this language was that an errno constant is > returned, the caller should not assume it is stored in errno. > Understood. If that's the case, I think some pieces of code were misunderstood in QEMU before.
Thanks Zhijian > errno is difficult, many things overwrite it, you can loose its value > during error handling. > > Jason
