5 files changed, 14 insertions, 11 deletions
diff --git a/ext/openssl/ossl_pkey.c b/ext/openssl/ossl_pkey.c
index e07e659319..cb0c320a0c 100644
--- a/ext/openssl/ossl_pkey.c
+++ b/ext/openssl/ossl_pkey.c
@@ -38,7 +38,7 @@ ossl_generate_cb(int p, int n, void *arg)
 int
 ossl_generate_cb_2(int p, int n, BN_GENCB *cb)
 {
-    VALUE ary, ret;
+    VALUE ary;
     struct ossl_generate_cb_arg *arg;
     int state;
 
@@ -51,7 +51,7 @@ ossl_generate_cb_2(int p, int n, BN_GENCB *cb)
 	/*
 	* can be break by raising exception or 'break'
 	*/
-	ret = rb_protect(rb_yield, ary, &state);
+	rb_protect(rb_yield, ary, &state);
 	if (state) {
 	    arg->stop = 1;
 	    arg->state = state;
diff --git a/ext/openssl/ossl_pkey_dh.c b/ext/openssl/ossl_pkey_dh.c
index 7f62db48d8..819fbced42 100644
--- a/ext/openssl/ossl_pkey_dh.c
+++ b/ext/openssl/ossl_pkey_dh.c
@@ -90,11 +90,12 @@ struct dh_blocking_gen_arg {
     int result;
 };
 
-static void
+static VALUE
 dh_blocking_gen(void *arg)
 {
     struct dh_blocking_gen_arg *gen = (struct dh_blocking_gen_arg *)arg;
     gen->result = DH_generate_parameters_ex(gen->dh, gen->size, gen->gen, gen->cb);
+    return Qnil;
 }
 #endif
 
diff --git a/ext/openssl/ossl_pkey_dsa.c b/ext/openssl/ossl_pkey_dsa.c
index 3339c1dfc6..e6a44deb0a 100644
--- a/ext/openssl/ossl_pkey_dsa.c
+++ b/ext/openssl/ossl_pkey_dsa.c
@@ -87,11 +87,12 @@ struct dsa_blocking_gen_arg {
     int result;
 };
 
-static void
+static VALUE
 dsa_blocking_gen(void *arg)
 {
     struct dsa_blocking_gen_arg *gen = (struct dsa_blocking_gen_arg *)arg;
     gen->result = DSA_generate_parameters_ex(gen->dsa, gen->size, gen->seed, gen->seed_len, gen->counter, gen->h, gen->cb);
+    return Qnil;
 }
 #endif
 
diff --git a/ext/openssl/ossl_pkey_rsa.c b/ext/openssl/ossl_pkey_rsa.c
index d6ae8d22bb..1e28b4fb2b 100644
--- a/ext/openssl/ossl_pkey_rsa.c
+++ b/ext/openssl/ossl_pkey_rsa.c
@@ -85,11 +85,12 @@ struct rsa_blocking_gen_arg {
     int result;
 };
 
-static void
+static VALUE
 rsa_blocking_gen(void *arg)
 {
     struct rsa_blocking_gen_arg *gen = (struct rsa_blocking_gen_arg *)arg;
     gen->result = RSA_generate_key_ex(gen->rsa, gen->size, gen->e, gen->cb);
+    return Qnil;
 }
 #endif
 
diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
index 3769633468..eb04a612c9 100644
--- a/ext/openssl/ossl_ssl.c
+++ b/ext/openssl/ossl_ssl.c
@@ -380,7 +380,7 @@ ossl_call_session_new_cb(VALUE ary)
 static int
 ossl_sslctx_session_new_cb(SSL *ssl, SSL_SESSION *sess)
 {
-    VALUE ary, ssl_obj, sess_obj, ret_obj;
+    VALUE ary, ssl_obj, sess_obj;
     void *ptr;
     int state = 0;
 
@@ -397,7 +397,7 @@ ossl_sslctx_session_new_cb(SSL *ssl, SSL_SESSION *sess)
     rb_ary_push(ary, ssl_obj);
     rb_ary_push(ary, sess_obj);
 
-    ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_session_new_cb, ary, &state);
+    rb_protect((VALUE(*)_((VALUE)))ossl_call_session_new_cb, ary, &state);
     if (state) {
         rb_ivar_set(ssl_obj, ID_callback_state, INT2NUM(state));
     }
@@ -429,7 +429,7 @@ ossl_call_session_remove_cb(VALUE ary)
 static void
 ossl_sslctx_session_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
 {
-    VALUE ary, sslctx_obj, sess_obj, ret_obj;
+    VALUE ary, sslctx_obj, sess_obj;
     void *ptr;
     int state = 0;
 
@@ -446,7 +446,7 @@ ossl_sslctx_session_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
     rb_ary_push(ary, sslctx_obj);
     rb_ary_push(ary, sess_obj);
 
-    ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_session_remove_cb, ary, &state);
+    rb_protect((VALUE(*)_((VALUE)))ossl_call_session_remove_cb, ary, &state);
     if (state) {
 /*
   the SSL_CTX is frozen, nowhere to save state.
@@ -506,7 +506,7 @@ ossl_call_servername_cb(VALUE ary)
 static int
 ssl_servername_cb(SSL *ssl, int *ad, void *arg)
 {
-    VALUE ary, ssl_obj, ret_obj;
+    VALUE ary, ssl_obj;
     void *ptr;
     int state = 0;
     const char *servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
@@ -521,7 +521,7 @@ ssl_servername_cb(SSL *ssl, int *ad, void *arg)
     rb_ary_push(ary, ssl_obj);
     rb_ary_push(ary, rb_str_new2(servername));
 
-    ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_servername_cb, ary, &state);
+    rb_protect((VALUE(*)_((VALUE)))ossl_call_servername_cb, ary, &state);
     if (state) {
         rb_ivar_set(ssl_obj, ID_callback_state, INT2NUM(state));
         return SSL_TLSEXT_ERR_ALERT_FATAL;