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ee43f23b0e
Devices' de-init process might access some mapped memory space, such as virtio virtqueues. Access after unmap will cause a fault. Release the memory map after de-init processes can avoid it. Reading more code, there are many error handling lost to unmap the memory. Refined the code to do it. Signed-off-by: Liu Shuo <shuo.a.liu@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com>