From 5da5e8e02f6ac18d36934a57ec02c069eda9f63f Mon Sep 17 00:00:00 2001
From: Joel Sing <jsing@google.com>
Date: Mon, 26 Nov 2012 22:03:31 +1100
Subject: [PATCH] cmd/gc: check malloc return value

Check the return value from malloc - do not assume that we were
allocated memory just because we asked for it.

Update #4415.

R=minux.ma, daniel.morsing, remyoudompheng, rsc
CC=golang-dev
https://golang.org/cl/6782100
---
 src/cmd/gc/lex.c   | 5 +++++
 src/cmd/gc/sinit.c | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/src/cmd/gc/lex.c b/src/cmd/gc/lex.c
index ad8bdebf03..8e16747efd 100644
--- a/src/cmd/gc/lex.c
+++ b/src/cmd/gc/lex.c
@@ -1165,6 +1165,11 @@ l0:
 	case '[':
 		if(loophack || lstk != nil) {
 			h = malloc(sizeof *h);
+			if(h == nil) {
+				flusherrors();
+				yyerror("out of memory");
+				errorexit();
+			}
 			h->v = loophack;
 			h->next = lstk;
 			lstk = h;
diff --git a/src/cmd/gc/sinit.c b/src/cmd/gc/sinit.c
index d1438f1003..e8010099d2 100644
--- a/src/cmd/gc/sinit.c
+++ b/src/cmd/gc/sinit.c
@@ -84,6 +84,11 @@ init1(Node *n, NodeList **out)
 	}
 	n->initorder = InitPending;
 	l = malloc(sizeof *l);
+	if(l == nil) {
+		flusherrors();
+		yyerror("out of memory");
+		errorexit();
+	}
 	l->next = initlist;
 	l->n = n;
 	l->end = nil;