From 6bdc6809dabf6f18e55bce972a1c0f289a60427c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20P=C3=A9gouri=C3=A9-Gonnard?=
 <manuel.pegourie-gonnard@arm.com>
Date: Thu, 28 Nov 2019 10:29:41 +0100
Subject: [PATCH] Initialise variables to failing values

---
 library/x509_crt.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/library/x509_crt.c b/library/x509_crt.c
index fde6843b5..b90ec72e8 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -2943,9 +2943,9 @@ static int x509_crt_find_parent_in(
                         mbedtls_x509_crt_restart_ctx *rs_ctx )
 {
     int ret;
-    volatile int ret_fi;
+    volatile int ret_fi = MBEDTLS_ERR_PLATFORM_FAULT_DETECTED;
     mbedtls_x509_crt *parent_crt;
-    int signature_is_good;
+    int signature_is_good = 0;
 
 #if defined(MBEDTLS_HAVE_TIME_DATE)
     mbedtls_x509_crt *fallback_parent;
@@ -3040,7 +3040,6 @@ check_signature:
         }
 #endif
 
-        signature_is_good = 0;
         if( ret_fi == 0 )
         {
             mbedtls_platform_enforce_volatile_reads();
@@ -3781,7 +3780,7 @@ int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
     int ret;
     mbedtls_x509_crt_verify_chain ver_chain;
     uint32_t ee_flags;
-    volatile uint32_t flags_fi;
+    volatile uint32_t flags_fi = -1u;
 
     *flags = 0;
     ee_flags = 0;