[PATCH v1] examples/fips_validation: fix print for zero length payload

[Archana Muniganti]

NIST GCM decrypt result vectors expects to have following print
for zero length payload instead of having no print.
"pt" = ""

Fixes: b09aac2d6e2b ("examples/fips_validation: add JSON to GCM test")

Signed-off-by: Archana Muniganti <march...@marvell.com>
---
 examples/fips_validation/fips_validation_gcm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/fips_validation/fips_validation_gcm.c 
b/examples/fips_validation/fips_validation_gcm.c
index 28ef04c817..6b3d158629 100644
--- a/examples/fips_validation/fips_validation_gcm.c
+++ b/examples/fips_validation/fips_validation_gcm.c
@@ -327,6 +327,9 @@ parse_test_gcm_json_writeback(struct fips_val *val)
                                writeback_hex_str("", info.one_line_text, 
&tmp_val);
                                json_object_set_new(json_info.json_write_case, 
PT_JSON_STR,
                                        json_string(info.one_line_text));
+                       } else {
+                               json_object_set_new(json_info.json_write_case, 
PT_JSON_STR,
+                                       json_string(""));
                        }
                } else {
                        json_object_set_new(json_info.json_write_case, 
"testPassed", json_false());
-- 
2.25.1