commit 24eed8d2d2df4423a63c8761edd0d65a43ff03a3
author Janos Follath <janos.follath@arm.com> Fri Nov 22 13:21:35 2019 +0000
committer Janos Follath <janos.follath@arm.com> Tue Dec 03 16:07:18 2019 +0000
tree fefff85746d2b1296b06cfca0ad6cfcd18aed758
parent a13b905d8dde4d851f1730e62643d1fb775649ca

Initialise return values to an error

Initialising the return values to and error is best practice and makes
the library more robust.

library/nist_kw.c

diff --git a/library/nist_kw.c b/library/nist_kw.c
index 317a242..03e8072 100644
--- a/library/nist_kw.c
+++ b/library/nist_kw.c
@@ -39,6 +39,7 @@
 
 #include "mbedtls/nist_kw.h"
 #include "mbedtls/platform_util.h"
+#include "mbedtls/error.h"
 
 #include <stdint.h>
 #include <string.h>
@@ -116,7 +117,7 @@
                             unsigned int keybits,
                             const int is_wrap )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const mbedtls_cipher_info_t *cipher_info;
 
     cipher_info = mbedtls_cipher_info_from_values( cipher,