[PATCH 2/2] lib/test_printf: add test of null/invalid pointer dereference for dentry

[Jia He]

This add some additional test cases of null/invalid pointer dereference
for dentry and file (%pd and %pD)

Signed-off-by: Jia He <justin.he@xxxxxxx>
---
 lib/test_printf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 944eb50f3862..befedffeb476 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -455,6 +455,13 @@ dentry(void)
 	test("foo", "%pd", &test_dentry[0]);
 	test("foo", "%pd2", &test_dentry[0]);
 
+	/* test the null/invalid pointer case for dentry */
+	test("(null)", "%pd", NULL);
+	test("(efault)", "%pd", PTR_INVALID);
+	/* test the null/invalid pointer case for file */
+	test("(null)", "%pD", NULL);
+	test("(efault)", "%pD", PTR_INVALID);
+
 	test("romeo", "%pd", &test_dentry[3]);
 	test("alfa/romeo", "%pd2", &test_dentry[3]);
 	test("bravo/alfa/romeo", "%pd3", &test_dentry[3]);
-- 
2.17.1