From b232ef3a2ec89298148ff1802d6398365f2891da Mon Sep 17 00:00:00 2001
From: "Arnold D. Robbins" <arnold@skeeve.com>
Date: Fri, 1 May 2015 13:35:46 +0300
Subject: Fix minor coredump.

---
 awkgram.y | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'awkgram.y')

diff --git a/awkgram.y b/awkgram.y
index 82283077..c7403200 100644
--- a/awkgram.y
+++ b/awkgram.y
@@ -1195,9 +1195,12 @@ param_list
 	  }
 	| param_list comma NAME
 	  {
-		$3->param_count =  $1->lasti->param_count + 1;
-		$$ = list_append($1, $3);
-		yyerrok;
+		if ($1 != NULL && $3 != NULL) {
+			$3->param_count =  $1->lasti->param_count + 1;
+			$$ = list_append($1, $3);
+			yyerrok;
+		} else
+			$$ = NULL;
 	  }
 	| error
 	  { $$ = NULL; }
-- 
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