diff --git a/gasket_ioctl.c b/gasket_ioctl.c
index 1b164ac..8cf094b 100644
--- a/gasket_ioctl.c
+++ b/gasket_ioctl.c
@@ -441,8 +441,10 @@ static int gasket_config_coherent_allocator(
 			gasket_dev, ibuf.size, &ibuf.dma_address,
 			ibuf.page_table_index);
 	}
+	if (ret)
+		return ret;
 	if (copy_to_user(argp, &ibuf, sizeof(ibuf)))
 		return -EFAULT;
 
-	return ret;
+	return 0;
 }