[Xen-devel] [PATCH v1] Fix libxc return -E misusage.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

Hey,

Please see the following set of patches which fix the various
usage of return -Exx instead of return -1 for errors (and
stashing the error value in errno).

It also cleans up some of the invalid usage of errno (as the
underlaying calls already stash errno values) - and we just
need to bubble them up.

Lastly it also wraps an errno-invisibility shield against
xc_hypercall_bounce_* calls so that any errors in those
won't over-write the hypercall ones.


 tools/libxc/xc_core_arm.c              | 15 ++++++++--
 tools/libxc/xc_core_x86.c              | 22 +++++++++++---
 tools/libxc/xc_cpupool.c               |  4 +--
 tools/libxc/xc_dom_x86.c               |  7 +++--
 tools/libxc/xc_domain.c                |  2 +-
 tools/libxc/xc_domain_save.c           |  8 ++++-
 tools/libxc/xc_freebsd_osdep.c         |  3 ++
 tools/libxc/xc_hcall_buf.c             |  6 ++++
 tools/libxc/xc_linux_osdep.c           |  3 ++
 tools/libxc/xc_offline_page.c          | 36 +++++++++++++----------
 tools/libxc/xc_physdev.c               | 12 +++++---
 tools/libxc/xc_pm.c                    | 54 ++++++++++++++++++++++------------
 tools/libxc/xc_private.c               |  4 +--
 tools/libxc/xc_tmem.c                  | 14 ++++++---
 tools/libxc/xg_save_restore.h          |  3 ++
 tools/libxl/libxl.c                    |  4 +--
 tools/libxl/libxl_x86.c                |  9 ++----
 tools/misc/xen-hptool.c                |  6 ++--
 tools/misc/xen-mfndump.c               |  2 +-
 tools/tests/mem-sharing/memshrtool.c   | 12 ++++++--
 tools/xenstat/libxenstat/src/xenstat.c |  5 ++--
 21 files changed, 158 insertions(+), 73 deletions(-)


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