[Qemu-block] [PATCH RFC v2 0/2] MSI/MSIX: fix to catch and report errors

[Cao jin]

msi_init() & msix_init() are supporting functions for PCI devices. catch the
errors they produced and report.

V2 changelog:
1. Modify as per Markus`s review
  a. Try to cleanup on function fail, as possible as I can.
  b. For .init() function, use error_report_err() and return non-zero value.
  c. For .realize(), propagate the error.
  d. Special case: TYPE_ICH9_AHCI, it is a on-board device initialized with
     machine init, so don`t bother to cleanup on failure, as process will exit
     anyway.

Cao jin (2):
  Add param Error** to msi_init() & modify the callers
  Add param Error** to msix_init() & modify the callers

 hw/audio/intel-hda.c               | 10 ++++-
 hw/block/nvme.c                    | 32 +++++++++-----
 hw/ide/ich.c                       |  2 +-
 hw/misc/ivshmem.c                  |  7 ++-
 hw/net/rocker/rocker.c             | 10 +++--
 hw/net/vmxnet3.c                   | 39 +++++++++++------
 hw/pci-bridge/ioh3420.c            |  7 ++-
 hw/pci-bridge/pci_bridge_dev.c     |  8 +++-
 hw/pci-bridge/xio3130_downstream.c |  8 +++-
 hw/pci-bridge/xio3130_upstream.c   |  8 +++-
 hw/pci/msi.c                       | 18 ++++++--
 hw/pci/msix.c                      | 20 ++++++---
 hw/scsi/megasas.c                  | 35 +++++++++++----
 hw/scsi/vmw_pvscsi.c               | 13 ++++--
 hw/usb/hcd-xhci.c                  | 88 +++++++++++++++++++++-----------------
 hw/vfio/pci.c                      | 28 ++++++------
 hw/virtio/virtio-bus.c             |  3 ++
 hw/virtio/virtio-pci.c             | 64 +++++++++++++--------------
 include/hw/pci/msi.h               |  4 +-
 include/hw/pci/msix.h              |  5 ++-
 20 files changed, 264 insertions(+), 145 deletions(-)

-- 
2.1.0