vmw_validation_prepare
ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
ret = vmw_validation_prepare(&val_ctx, NULL, interruptible);
ret = vmw_validation_prepare(&val_ctx, NULL, true);
ret = vmw_validation_prepare(&val_ctx, NULL, true);
ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
int vmw_validation_prepare(struct vmw_validation_context *ctx,