[Libva] [PATCH_v2] Fix the issue in i965_UnlockSurface to lock it next time

[yakui.zhao at intel.com]

From: Zhao Yakui <yakui.zhao at intel.com>

It uses the variable of locked_image_id to check whether one surface is locked
or not. But as the locked_image_id is not assigned correctly, it causes that
it can't lock one surface next time although it calls the vaUnlockSurfaces.
Then the libva trace log can't dump the content of decoded/
encoded surface correctly even after adding LIBVA_TRACE_SURFACE=XXX.

Signed-off-by: Zhao Yakui <yakui.zhao at intel.com>
Reviewed-by: Gwenole Beauchesne <gb.devel at gmail.com>
---
 src/i965_drv_video.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/i965_drv_video.c b/src/i965_drv_video.c
index 8a99e43..8e5bbf6 100755
--- a/src/i965_drv_video.c
+++ b/src/i965_drv_video.c
@@ -3646,6 +3646,8 @@ i965_UnlockSurface(
     locked_img->image.image_id = VA_INVALID_ID;
 
  error:
+    obj_surface->locked_image_id = VA_INVALID_ID;
+
     return vaStatus;
 }
 
-- 
1.7.12-rc1