From d1428568466976c26d0b1fc09185c30219984041 Mon Sep 17 00:00:00 2001
From: Andrzej Kurek <andrzej.kurek@mobica.com>
Date: Tue, 5 Feb 2019 05:11:03 -0500
Subject: [PATCH] cipher: remove unnecessary precondition

Already checked by parameter validation macros
---
 library/cipher.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/library/cipher.c b/library/cipher.c
index 2636c090c..2465536c9 100644
--- a/library/cipher.c
+++ b/library/cipher.c
@@ -283,12 +283,6 @@ int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx,
     if( ctx->cipher_info == NULL )
         return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
 
-    if( operation != MBEDTLS_DECRYPT &&
-        operation != MBEDTLS_ENCRYPT )
-    {
-        return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
-    }
-
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if( ctx->psa_enabled == 1 )
     {