From 86bcdcb3db79ac2d1faa387bbe194924e966dd69 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Tue, 27 Jun 2017 17:08:26 +0200
Subject: erts: Make apply throw 'badarg' if Args is not a list

instead of a strange 'undef' exception.
---
 erts/emulator/beam/beam_emu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'erts/emulator/beam')

diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 79d751d13e..bc83699951 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -6829,7 +6829,7 @@ apply_fun(Process* p, Eterm fun, Eterm args, Eterm* reg)
     }
 
     if (is_not_nil(tmp)) {	/* Must be well-formed list */
-	p->freason = EXC_UNDEF;
+	p->freason = EXC_BADARG;
 	return NULL;
     }
     reg[arity] = fun;
-- 
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