Index: uspace/lib/c/generic/inet/tcp.c
===================================================================
--- uspace/lib/c/generic/inet/tcp.c	(revision 048cd69e69ce8a5ca8bbf5d8a5b5451745dca93a)
+++ uspace/lib/c/generic/inet/tcp.c	(revision 204ba4771af4f0ec3835cd55586cdc002020f247)
@@ -525,4 +525,7 @@
 	fibril_condvar_broadcast(&conn->cv);
 
+	if (conn->cb != NULL && conn->cb->data_avail != NULL)
+		conn->cb->data_avail(conn);
+
 	async_answer_0(iid, EOK);
 }