[PATCH v3] list: test: potential dereference of null pointer

[Ma Ke]

To avoid the failure of alloc, we could check the return value of
kmalloc() and kzalloc().

Signed-off-by: Ma Ke <make_ruc2...@163.com>
---
 lib/list-test.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/list-test.c b/lib/list-test.c
index 0cc27de9cec8..a0b478042477 100644
--- a/lib/list-test.c
+++ b/lib/list-test.c
@@ -26,10 +26,12 @@ static void list_test_list_init(struct kunit *test)
 
        INIT_LIST_HEAD(&list2);
 
-       list4 = kzalloc(sizeof(*list4), GFP_KERNEL | __GFP_NOFAIL);
+       list4 = kunit_kzalloc(test, sizeof(*list4), GFP_KERNEL | __GFP_NOFAIL);
+       KUNIT_ASSERT_NOT_NULL(test, list4);
        INIT_LIST_HEAD(list4);
 
        list5 = kmalloc(sizeof(*list5), GFP_KERNEL | __GFP_NOFAIL);
+       KUNIT_ASSERT_NOT_NULL(test, list5);
        memset(list5, 0xFF, sizeof(*list5));
        INIT_LIST_HEAD(list5);
 
@@ -40,7 +42,6 @@ static void list_test_list_init(struct kunit *test)
        KUNIT_EXPECT_TRUE(test, list_empty_careful(list4));
        KUNIT_EXPECT_TRUE(test, list_empty_careful(list5));
 
-       kfree(list4);
        kfree(list5);
 }
 
-- 
2.37.2