[PATCH v3 1/7] xen: error handling and FreeBSD compatibility fixes

[David Woodhouse <dwmw2@xxxxxxxxxxxxx>]

Add a new xs_node_read() helper function which constructs the node path 
using a printf format string, and use it where appropriate.

In particular, use it to eliminate the use of the %ms format specifier 
for scanf(), which doesn't exist in FreeBSD.

v3:
 • Further cleanups using xs_node_read().
 • Clean up errp handling for xen-console 'output' node.
 • Improve comment for xs_node_read().

v2:
 • Add xs_node_read() helper.
 • Also fix usage of %ms in xen-block.c

David Woodhouse (6):
      hw/xen: Add xs_node_read() helper function
      hw/xen: Use xs_node_read() from xs_node_vscanf()
      hw/xen: Use xs_node_read() from xen_console_get_name()
      hw/xen: Use xs_node_read() from xen_netdev_get_name()
      hw/xen: Use xs_node_read() from xenstore_read_str() instead of 
open-coding it
      hw/xen: Fix errp handling in xen_console

Roger Pau Monné (1):
      xen: do not use '%ms' scanf specifier

 hw/block/xen-block.c            |  3 ++-
 hw/char/xen_console.c           | 56 ++++++++++++++++++++++++-----------------
 hw/net/xen_nic.c                | 13 +++++-----
 hw/xen/trace-events             |  2 +-
 hw/xen/xen-bus-helper.c         | 37 ++++++++++++++++++++-------
 hw/xen/xen-bus.c                | 14 +++++++++--
 hw/xen/xen_pvdev.c              |  6 ++---
 include/hw/xen/xen-bus-helper.h |  9 +++++++
 include/hw/xen/xen-bus.h        |  1 +
 9 files changed, 94 insertions(+), 47 deletions(-)