From: Gonglei <arei.gong...@huawei.com>
When hot-unplugging the usb controllers (ehci/uhci),
we have to clean all resouce of these devices,
involved registered reset handler. Otherwise, it
may cause NULL pointer access and/or segmentation fault
if we reboot the guest os after hot-unplugging.
Let's hook up reset via DeviceClass->reset() and drop
the qemu_register_reset() call. Then Qemu will register
and unregister the reset handler automatically.
Cc: qemu-stable <qemu-sta...@nongnu.org>
v1 -> v2:
- hooking up reset via DeviceClass->reset
and drop the qemu_register_reset() calls. (Gerd)
Gonglei (3):
uhci: using DeviceClasss->reset qemu_register_reset() call
ehci: using DeviceClasss->reset qemu_register_reset() call
ohci: using DeviceClasss->reset qemu_register_reset() call
hw/usb/hcd-ehci-pci.c | 10 ++++++++++
hw/usb/hcd-ehci.c | 3 +--
hw/usb/hcd-ehci.h | 1 +
hw/usb/hcd-ohci.c | 11 ++++++++++-
hw/usb/hcd-uhci.c | 12 ++++++------
5 files changed, 28 insertions(+), 9 deletions(-)
--
1.7.12.4
