1 files changed, 21 insertions, 1 deletions

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 250ee864b8b8..359ae4fb1ece 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -239,6 +239,7 @@ plain_format(void)
 #define PTR ((void *)0x456789ab)
 #define PTR_STR "456789ab"
 #define PTR_VAL_NO_CRNG "(ptrval)"
+#define ZEROS ""
 
 static int __init
 plain_format(void)
@@ -268,7 +269,6 @@ plain_hash_to_buffer(const void *p, char *buf, size_t len)
         return 0;
 }
 
-
 static int __init
 plain_hash(void)
 {
@@ -326,6 +326,24 @@ test_hashed(const char *fmt, const void *p)
 }
 
 static void __init
+null_pointer(void)
+{
+        test_hashed("%p", NULL);
+        test(ZEROS "00000000", "%px", NULL);
+        test("(null)", "%pE", NULL);
+}
+
+#define PTR_INVALID ((void *)0x000000ab)
+
+static void __init
+invalid_pointer(void)
+{
+        test_hashed("%p", PTR_INVALID);
+        test(ZEROS "000000ab", "%px", PTR_INVALID);
+        test("(efault)", "%pE", PTR_INVALID);
+}
+
+static void __init
 symbol_ptr(void)
 {
 }
@@ -571,6 +589,8 @@ static void __init
 test_pointer(void)
 {
         plain();
+        null_pointer();
+        invalid_pointer();
         symbol_ptr();
         kernel_ptr();
         struct_resource();