Fix: check the bo of reconstructed to ensure it is not NULL
Fix: check the bo of reconstructed to ensure it is not NULL

Signed-off-by: Pengfei Qu <3770d20c463a9a2048391f18839a717424bdb1b3@intel.com>
Tested-by: Xiang, Haihao <8d677183e5993577d4fa73a419b76987913292d6@intel.com>

01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver