geoip: got rid of ugly casts when calling ngx_free().

This is done by removing the "const" qualifier from the common return
type of handler functions returning either "const char *" or "char *".

diff --git a/src/http/modules/ngx_http_geoip_module.c b/src/http/modules/ngx_http_geoip_module.c
index 66cd3fb21c35ff4aefbac148dd5b725ccb2e630a..0ce3bf1e59b6d24526c9ce68b3a7ada33ee63232 100644 (file)
--- a/src/http/modules/ngx_http_geoip_module.c
+++ b/src/http/modules/ngx_http_geoip_module.c
@@ -28,7 +28,7 @@ typedef struct {
 } ngx_http_geoip_var_t;
 
 
-typedef const char *(*ngx_http_geoip_variable_handler_pt)(GeoIP *, u_long addr);
+typedef char *(*ngx_http_geoip_variable_handler_pt)(GeoIP *, u_long addr);
 
 static u_long ngx_http_geoip_addr(ngx_http_request_t *r,
     ngx_http_geoip_conf_t *gcf);
@@ -292,7 +292,7 @@ ngx_http_geoip_org_variable(ngx_http_request_t *r,
         (ngx_http_geoip_variable_handler_pt) data;
 
     size_t                  len;
-    const char             *val;
+    char                   *val;
     ngx_http_geoip_conf_t  *gcf;
 
     gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module);
@@ -310,7 +310,7 @@ ngx_http_geoip_org_variable(ngx_http_request_t *r,
     len = ngx_strlen(val);
     v->data = ngx_pnalloc(r->pool, len);
     if (v->data == NULL) {
-        ngx_free((void *) val);
+        ngx_free(val);
         return NGX_ERROR;
     }
 
@@ -321,7 +321,7 @@ ngx_http_geoip_org_variable(ngx_http_request_t *r,
     v->no_cacheable = 0;
     v->not_found = 0;
 
-    ngx_free((void *) val);
+    ngx_free(val);
 
     return NGX_OK;