Index: kernel/generic/src/ipc/ops/datawrite.c
===================================================================
--- kernel/generic/src/ipc/ops/datawrite.c	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/src/ipc/ops/datawrite.c	(revision 50f19b7ee8e94570b5c63896736c4eb49cfa18db)
@@ -58,5 +58,5 @@
 	call->buffer = (uint8_t *) malloc(size, 0);
 	errno_t rc = copy_from_uspace(call->buffer, (void *) src, size);
-	if (rc != 0) {
+	if (rc != EOK) {
 		/*
 		 * call->buffer will be cleaned up in ipc_call_free() at the