[dpdk-dev] [PATCH] examples/fips_validation: fix checking return value

[Ciara Power]

The return value was not being checked when calling the
get_writeback_data function in the AES test case. On failure, this led
to a NULL dereference when using memcpy later. The return value is now
checked to avoid this NULL dereference.

Coverity issue: 363463
Fixes: cd255ccf5764 ("examples/fips_validation: support AES parsing")
Cc: marko.kovace...@intel.com
Cc: roy.fan.zh...@intel.com
Cc: sta...@dpdk.org

Signed-off-by: Ciara Power <ciara.po...@intel.com>
---
 examples/fips_validation/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/examples/fips_validation/main.c b/examples/fips_validation/main.c
index 07532c9562..bc7abd2b8f 100644
--- a/examples/fips_validation/main.c
+++ b/examples/fips_validation/main.c
@@ -1520,7 +1520,9 @@ fips_mct_aes_test(void)
                                return ret;
                        }
 
-                       get_writeback_data(&val);
+                       ret = get_writeback_data(&val);
+                       if (ret < 0)
+                               return ret;
 
                        if (info.op == FIPS_TEST_DEC_AUTH_VERIF)
                                memcpy(prev_in, vec.ct.val, AES_BLOCK_SIZE);
-- 
2.25.1