[Qemu-devel] [PATCH 0/4] Fix usb-ccid hotplug regression

[Marc-André Lureau]

Hi,

The following series fixes the usb-ccid hotplug regression introduced
by commit 675f22c6d3b0: the plugged device is not completely removed
on device_del anymore, due to an extra reference added when doing
set_link(). It turns out the memory management of qdev bus/child is a
bit weird, this is my attempt to improve the situation and fix the
regression.

Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1556678

Marc-André Lureau (4):
  bus: do not unref the added child bus on realize
  object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence
  usb-ccid: fix bus leak
  usb-hcd-xhci-test: add a test for ccid hotplug

 include/qom/object.h          | 12 +++++++++---
 hw/core/bus.c                 |  1 -
 hw/core/qdev-properties.c     |  2 +-
 hw/core/qdev.c                |  2 +-
 hw/display/xlnx_dp.c          |  2 +-
 hw/dma/xilinx_axidma.c        |  4 ++--
 hw/dma/xlnx-zdma.c            |  2 +-
 hw/i386/pc.c                  |  2 +-
 hw/i386/pc_piix.c             |  2 +-
 hw/i386/pc_q35.c              |  2 +-
 hw/ipmi/ipmi.c                |  2 +-
 hw/net/xilinx_axienet.c       |  4 ++--
 hw/ssi/xilinx_spips.c         |  2 +-
 hw/usb/dev-smartcard-reader.c |  1 +
 net/can/can_host.c            |  2 +-
 net/colo-compare.c            |  2 +-
 qom/object.c                  |  8 +++++---
 target/arm/cpu.c              |  4 ++--
 tests/usb-hcd-xhci-test.c     | 10 ++++++++++
 ui/console.c                  |  2 +-
 20 files changed, 43 insertions(+), 25 deletions(-)


base-commit: c181ddaa176856b3cd2dfd12bbcf25fa9c884a97
-- 
2.17.1.906.g10fd178552