[PATCH v2 02/21] libiscsi: Add an internal error code

[Christoph Hellwig]

On Tue, Apr 25, 2017 at 12:20:49PM -0600, Logan Gunthorpe wrote:
> This is a prep patch to add a new error code to libiscsi. We want to
> rework some kmap calls to be able to fail. When we do, we'd like to
> use this error code.

The kmap case in iscsi_tcp_segment_map can already fail.  Please add
handling of that failure to this patch, and we should get it merged
ASAP.