Index: uspace/lib/ipcgfx/src/server.c
===================================================================
--- uspace/lib/ipcgfx/src/server.c	(revision 5fc82448bbd01f2950b893989095ed4c1b1c99b3)
+++ uspace/lib/ipcgfx/src/server.c	(revision 17c0f5d3dbc71d4acf0607c23f54e6519bcea40f)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2021 Jiri Svoboda
+ * Copyright (c) 2023 Jiri Svoboda
  * All rights reserved.
  *
@@ -151,4 +151,5 @@
 
 	if (!async_share_out_receive(&call, &size, &flags)) {
+		async_answer_0(&call, EINVAL);
 		async_answer_0(icall, EINVAL);
 		return;
@@ -157,4 +158,5 @@
 	/* Check size */
 	if (size != PAGES2SIZE(SIZE2PAGES(dim.x * dim.y * sizeof(uint32_t)))) {
+		async_answer_0(&call, EINVAL);
 		async_answer_0(icall, EINVAL);
 		return;
@@ -163,4 +165,5 @@
 	rc = async_share_out_finalize(&call, &pixels);
 	if (rc != EOK || pixels == AS_MAP_FAILED) {
+		async_answer_0(&call, ENOMEM);
 		async_answer_0(icall, ENOMEM);
 		return;