From cd0f276cee79f2a2601f2691b45344d327f42ffc Mon Sep 17 00:00:00 2001
From: Hanno Becker <hanno.becker@arm.com>
Date: Fri, 1 Feb 2019 09:57:20 +0000
Subject: [PATCH] Update pointer in PSA-based mbedtls_pk_write_pubkey()

---
 library/pkwrite.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/pkwrite.c b/library/pkwrite.c
index 11a2a6145..943dbca01 100644
--- a/library/pkwrite.c
+++ b/library/pkwrite.c
@@ -181,7 +181,8 @@ int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start,
         }
         else
         {
-            memmove( *p - len, start, len );
+            *p -= len;
+            memmove( *p, start, len );
         }
     }
     else