drm/i915/gvt: Refine error handling for intel_vgpu_pin_mm
authorfred gao <fred.gao@intel.com>
Fri, 18 Aug 2017 07:41:09 +0000 (15:41 +0800)
committerZhenyu Wang <zhenyuw@linux.intel.com>
Fri, 8 Sep 2017 06:21:15 +0000 (14:21 +0800)
commit46b441efa374cf1581c267a16089c205f2fc0ded
tree0082ef6ea7ccbc427f9c076b7a8fac6cb10167d9
parent0cce2823ed37b75555749c0969528d8c74887ada
drm/i915/gvt: Refine error handling for intel_vgpu_pin_mm

When it is failed in shadow_mm, the pin_count should rollback
to the original states before return.

v2:
- split the mixed several error paths for better review. (Zhenyu)

v3:
  increase the pincount after shadow success. (Zhenyu)

Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
drivers/gpu/drm/i915/gvt/gtt.c