From 85f29cd6a12d430706c39247e7d0207590f581df Mon Sep 17 00:00:00 2001
From: Tang Bin <tangbin@cmss.chinamobile.com>
Date: Mon, 28 Jun 2021 19:35:07 -0700
Subject: [PATCH] tools/vm/page_owner_sort.c: check malloc() return

Link: https://lkml.kernel.org/r/20210506131402.10416-1-tangbin@cmss.chinamobile.com
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 tools/vm/page_owner_sort.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index 85eb65ea16d3..0e75f22c9475 100644
--- a/tools/vm/page_owner_sort.c
+++ b/tools/vm/page_owner_sort.c
@@ -132,6 +132,10 @@ int main(int argc, char **argv)
 	qsort(list, list_size, sizeof(list[0]), compare_txt);
 
 	list2 = malloc(sizeof(*list) * list_size);
+	if (!list2) {
+		printf("Out of memory\n");
+		exit(1);
+	}
 
 	printf("culling\n");