In function virt_cpu_plug() and virt_cpu_unplug(), the error is
impossile. Destination error is not propagated and replaced with
error_abort. With this, the logic is simple.

Also there is bugfix in function virt_cpu_plug(), Object cpuslot::cpu is
set at last only when there is no any error.

---
  v6 ... v7:
    1. Replace dest error from parameter errp with error_abort since the
       error is impossible.
    2. Some patches are merged, refresh the pending two patches.

  v5 ... v6:
    1. If there is nested error report when restore from error in function
       virt_cpu_plug(), set output Error object with &error_abort rather
       than NULL, since it is almost impossible now.
    2. If there is nested error report when restore from error in function
       virt_cpu_unplug(), set output Error object with &error_abort rather
       than NULL, since it is almost impossible now.

  v4 ... v5:
    1. Split patch2 in v4 into three small patches, two are fixup for error
       handing when cpu plug/unplug fails so that system can continue to
       run, one is to remove error_propagate() and refresh title.
    2. Refresh changelog in last patch and remove fixes information
       since it is impossible to happen.

  v3 ... v4:
    1. Add missed this cleanup with error and remove some local error
       object.
    2. Replace local error object with error_abort object in
       virt_cpu_irq_init(), since its return value is not checked.

  v2 ... v3:
    1. Add missing modification replacing error_propagate() + error_setg()
      with error_setg().
    2. Some enhancement about error handling, handling error
       symmetrically in many places

  v1 ... v2:
    1. Add fixes tag and change title with fix prefix in patch 1.
    2. Replace error_propagate() with error_setg(), and return directly
       for any error.
---
Bibo Mao (2):
  hw/loongarch/virt: Fix cpuslot::cpu set at last in virt_cpu_plug()
  hw/loongarch/virt: Replace destination error with error_abort

 hw/loongarch/virt.c | 43 +++++++++----------------------------------
 1 file changed, 9 insertions(+), 34 deletions(-)


base-commit: 71119ed3651622e1c531d1294839e9f3341adaf5
-- 
2.39.3