From f43febb218b27a9f429e39183540558c0854cac0 Mon Sep 17 00:00:00 2001
From: "Daniel R. Carvalho" <odanrc@yahoo.com.br>
Date: Mon, 15 Mar 2021 00:17:24 -0300
Subject: [PATCH] base-stats: Fix null addStatGroup

A group must be provided to be added to a stat
group.

Change-Id: I9da42fb12c2a8b258f9f45922a6fb6b7fd41a698
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43012
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
---
 src/base/stats/group.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/base/stats/group.cc b/src/base/stats/group.cc
index 2350dd54cf..a66c487c6e 100644
--- a/src/base/stats/group.cc
+++ b/src/base/stats/group.cc
@@ -113,6 +113,7 @@ Group::addStat(statistics::Info *info)
 void
 Group::addStatGroup(const char *name, Group *block)
 {
+    panic_if(!block, "Can't add null stat group %s", name);
     panic_if(block == this, "Stat group can't be added to itself");
     panic_if(statGroups.find(name) != statGroups.end(),
              "Stats of the same group share the same name `%s`.\n", name);