diff --git a/src/core/nginx.c b/src/core/nginx.c
index 0672126..e6ebae5 100644
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -388,7 +388,7 @@
 
     if (ngx_array_init(&cycle->listening, cycle->pool, 10,
                        sizeof(ngx_listening_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_ERROR;
     }
@@ -838,7 +838,7 @@
         ccf->pid.data = (u_char *) NGX_PID_PATH;
     }
 
-    if (ngx_conf_full_name(cycle, &ccf->pid, 0) == NGX_ERROR) {
+    if (ngx_conf_full_name(cycle, &ccf->pid, 0) != NGX_OK) {
         return NGX_CONF_ERROR;
     }
 
@@ -858,7 +858,7 @@
         ccf->lock_file.data = (u_char *) NGX_LOCK_PATH;
     }
 
-    if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) == NGX_ERROR) {
+    if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) != NGX_OK) {
         return NGX_CONF_ERROR;
     }
 
diff --git a/src/core/ngx_conf_file.c b/src/core/ngx_conf_file.c
index 68a89cc..7ec574e 100644
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -741,7 +741,7 @@
 
     ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
 
-    if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK) {
         return NGX_CONF_ERROR;
     }
 
@@ -854,7 +854,7 @@
     if (name) {
         full = *name;
 
-        if (ngx_conf_full_name(cycle, &full, 0) == NGX_ERROR) {
+        if (ngx_conf_full_name(cycle, &full, 0) != NGX_OK) {
             return NULL;
         }
 
diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index 9ee7e65..f3dc861 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -136,7 +136,7 @@
     }
 
     if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         ngx_destroy_pool(pool);
         return NULL;
@@ -155,7 +155,7 @@
     }
 
     if (ngx_list_init(&cycle->shared_memory, pool, n, sizeof(ngx_shm_zone_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         ngx_destroy_pool(pool);
         return NULL;
diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
index fdefacf..1bb4182 100644
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -259,7 +259,7 @@
         path->name.len--;
     }
 
-    if (ngx_conf_full_name(cf->cycle, &path->name, 0) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, &path->name, 0) != NGX_OK) {
         return NULL;
     }
 
diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index a9221db..f39f70f 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -329,7 +329,7 @@
         cf->cycle->new_log->file->name = value[1];
 
         if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name, 0)
-            == NGX_ERROR)
+            != NGX_OK)
         {
             return NGX_CONF_ERROR;
         }
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 0824e7a..5fa400d 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -189,7 +189,7 @@
 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
     ngx_str_t *key)
 {
-    if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
         return NGX_ERROR;
     }
 
@@ -202,7 +202,7 @@
         return NGX_ERROR;
     }
 
-    if (ngx_conf_full_name(cf->cycle, key, 1) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, key, 1) != NGX_OK) {
         return NGX_ERROR;
     }
 
@@ -233,7 +233,7 @@
         return NGX_OK;
     }
 
-    if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
         return NGX_ERROR;
     }
 
@@ -391,7 +391,7 @@
         return NGX_OK;
     }
 
-    if (ngx_conf_full_name(cf->cycle, file, 1) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
         return NGX_ERROR;
     }
 
diff --git a/src/http/modules/ngx_http_charset_filter_module.c b/src/http/modules/ngx_http_charset_filter_module.c
index 114542a..cccab4c 100644
--- a/src/http/modules/ngx_http_charset_filter_module.c
+++ b/src/http/modules/ngx_http_charset_filter_module.c
@@ -1421,19 +1421,21 @@
     }
 
     if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_CONF_ERROR;
     }
 
     if (ngx_array_init(&mcf->tables, cf->pool, 1,
-                       sizeof(ngx_http_charset_tables_t)) == NGX_ERROR)
+                       sizeof(ngx_http_charset_tables_t))
+        != NGX_OK)
     {
         return NGX_CONF_ERROR;
     }
 
     if (ngx_array_init(&mcf->recodes, cf->pool, 2,
-                       sizeof(ngx_http_charset_recode_t)) == NGX_ERROR)
+                       sizeof(ngx_http_charset_recode_t))
+        != NGX_OK)
     {
         return NGX_CONF_ERROR;
     }
diff --git a/src/http/modules/ngx_http_gzip_filter_module.c b/src/http/modules/ngx_http_gzip_filter_module.c
index 9053499..1bb9b4d 100644
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -327,7 +327,7 @@
     }
 
     if (in) {
-        if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
+        if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
             goto failed;
         }
     }
diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
index 7a85d1b..93ff905 100644
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -863,7 +863,7 @@
         }
 
     } else {
-        if (ngx_conf_full_name(cf->cycle, &value[1], 0) == NGX_ERROR) {
+        if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) {
             return NGX_CONF_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_map_module.c b/src/http/modules/ngx_http_map_module.c
index c2459f2..d0eb02c 100644
--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -374,7 +374,7 @@
     if (ngx_strcmp(value[0].data, "include") == 0) {
         file = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
+        if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK){
             return NGX_CONF_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_range_filter_module.c b/src/http/modules/ngx_http_range_filter_module.c
index 4a15637..47e08e7 100644
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -187,7 +187,7 @@
     }
 
     if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_ERROR;
     }
diff --git a/src/http/modules/ngx_http_ssi_filter_module.c b/src/http/modules/ngx_http_ssi_filter_module.c
index 849e13b..d27d854 100644
--- a/src/http/modules/ngx_http_ssi_filter_module.c
+++ b/src/http/modules/ngx_http_ssi_filter_module.c
@@ -397,7 +397,7 @@
     /* add the incoming chain to the chain ctx->in */
 
     if (in) {
-        if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
+        if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
             return NGX_ERROR;
         }
     }
@@ -2060,7 +2060,7 @@
     out = data;
 
     if (!r->header_sent) {
-        if (ngx_http_set_content_type(r) == NGX_ERROR) {
+        if (ngx_http_set_content_type(r) != NGX_OK) {
             return NGX_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_sub_filter_module.c b/src/http/modules/ngx_http_sub_filter_module.c
index 1cec8b6..b07d2c1 100644
--- a/src/http/modules/ngx_http_sub_filter_module.c
+++ b/src/http/modules/ngx_http_sub_filter_module.c
@@ -204,7 +204,7 @@
     /* add the incoming chain to the chain ctx->in */
 
     if (in) {
-        if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
+        if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
             return NGX_ERROR;
         }
     }
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 3abd6d4..6a5dadd 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1555,7 +1555,7 @@
 
                 exten = ngx_pnalloc(r->pool, r->exten.len);
                 if (exten == NULL) {
-                    return NGX_HTTP_INTERNAL_SERVER_ERROR;
+                    return NGX_ERROR;
                 }
 
                 hash = ngx_hash_strlow(exten, r->exten.data, r->exten.len);
@@ -1684,8 +1684,7 @@
             return NULL;
         }
 
-        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path, 0)== NGX_ERROR)
-        {
+        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path, 0) != NGX_OK) {
             return NULL;
         }
 
@@ -2006,7 +2005,7 @@
 
     if (ngx_list_init(&sr->headers_out.headers, r->pool, 20,
                       sizeof(ngx_table_elt_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_ERROR;
     }
@@ -2594,7 +2593,7 @@
     if (ngx_strcmp(value[0].data, "include") == 0) {
         file = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
+        if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK) {
             return NGX_CONF_ERROR;
         }
 
@@ -2728,14 +2727,14 @@
 
     if (ngx_array_init(&cscf->listen, cf->temp_pool, 4,
                        sizeof(ngx_http_listen_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_CONF_ERROR;
     }
 
     if (ngx_array_init(&cscf->server_names, cf->temp_pool, 4,
                        sizeof(ngx_http_server_name_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         return NGX_CONF_ERROR;
     }
@@ -2954,7 +2953,7 @@
             conf->root.len = sizeof("html") - 1;
             conf->root.data = (u_char *) "html";
 
-            if (ngx_conf_full_name(cf->cycle, &conf->root, 0) == NGX_ERROR) {
+            if (ngx_conf_full_name(cf->cycle, &conf->root, 0) != NGX_OK) {
                 return NGX_CONF_ERROR;
             }
         }
@@ -3526,7 +3525,7 @@
     }
 
     if (lcf->root.data[0] != '$') {
-        if (ngx_conf_full_name(cf->cycle, &lcf->root, 0) == NGX_ERROR) {
+        if (ngx_conf_full_name(cf->cycle, &lcf->root, 0) != NGX_OK) {
             return NGX_CONF_ERROR;
         }
     }
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index b43233f..faa8d7f 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -404,7 +404,7 @@
             }
 
             if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
-                == NGX_ERROR)
+                != NGX_OK)
             {
                 ngx_http_close_connection(c);
                 return;
@@ -447,7 +447,7 @@
 
     if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
                       sizeof(ngx_table_elt_t))
-        == NGX_ERROR)
+        != NGX_OK)
     {
         ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
         return;
@@ -807,7 +807,7 @@
 
             if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
                               sizeof(ngx_table_elt_t))
-                == NGX_ERROR)
+                != NGX_OK)
             {
                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
                 return;
@@ -816,7 +816,7 @@
 
             if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
                                sizeof(ngx_table_elt_t *))
-                == NGX_ERROR)
+                != NGX_OK)
             {
                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
                 return;
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 6ed7c8f..5458a58 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -860,7 +860,7 @@
 
     if (ngx_ssl_create_connection(u->conf->ssl, c,
                                   NGX_SSL_BUFFER|NGX_SSL_CLIENT)
-        == NGX_ERROR)
+        != NGX_OK)
     {
         ngx_http_upstream_finalize_request(r, u,
                                            NGX_HTTP_INTERNAL_SERVER_ERROR);
diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index 75ec740..360f837 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -332,7 +332,8 @@
 
     if (v == NULL) {
         if (ngx_array_init(&cmcf->variables, cf->pool, 4,
-                           sizeof(ngx_http_variable_t)) == NGX_ERROR)
+                           sizeof(ngx_http_variable_t))
+            != NGX_OK)
         {
             return NGX_ERROR;
         }
@@ -1072,9 +1073,7 @@
             return NGX_ERROR;
         }
 
-        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
-            == NGX_ERROR)
-        {
+        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) != NGX_OK) {
             return NGX_ERROR;
         }
 
@@ -1113,9 +1112,7 @@
 
         path.data[path.len - 1] = '\0';
 
-        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
-            == NGX_ERROR)
-        {
+        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) != NGX_OK) {
             return NGX_ERROR;
         }
     }