fix typo, add prototype

crypto/ec/ec_lib.c

@@ -622,7 +622,7 @@ void EC_EX_DATA_free_data(EC_EXTRA_DATA **ex_data,
 	}
 
 /* this has 'package' visibility */
-void EC_EX_DATA_clear_free_extra_data(EC_EXTRA_DATA **ex_data,
+void EC_EX_DATA_clear_free_data(EC_EXTRA_DATA **ex_data,
 	void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *))
 	{
 	EC_EXTRA_DATA **p;

crypto/ecdh/ech_lib.c

@@ -78,6 +78,7 @@ const char *ECDH_version="ECDH" OPENSSL_VERSION_PTEXT;
 
 static const ECDH_METHOD *default_ECDH_method = NULL;
 
+static void *ecdh_data_new(void);
 static void *ecdh_data_dup(void *);
 static void  ecdh_data_free(void *);
 
@@ -167,7 +168,7 @@ static ECDH_DATA *ECDH_DATA_new_method(ENGINE *engine)
 	return(ret);
 	}
 
-void *ecdh_data_new(void)
+static void *ecdh_data_new(void)
 	{
 	return (void *)ECDH_DATA_new_method(NULL);
 	}

crypto/ecdsa/ecs_lib.c

@@ -65,6 +65,7 @@ const char *ECDSA_version="ECDSA" OPENSSL_VERSION_PTEXT;
 
 static const ECDSA_METHOD *default_ECDSA_method = NULL;
 
+static void *ecdsa_data_new(void);
 static void *ecdsa_data_dup(void *);
 static void  ecdsa_data_free(void *);
 
@@ -147,7 +148,7 @@ static ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine)
 	return(ret);
 }
 
-void *ecdsa_data_new(void)
+static void *ecdsa_data_new(void)
 {
 	return (void *)ECDSA_DATA_new_method(NULL);
 }