gpu_fdinfo: move find_fd() to the right place

Author: 17314642

src/gpu_fdinfo.h

@@ -37,8 +37,6 @@ class GPU_fdinfo {
 
     public:
         GPU_fdinfo(const std::string module, const std::string pci_dev) : module(module), pci_dev(pci_dev) {
-            find_fd();
-
             if (module == "i915") {
                 drm_engine_type = "drm-engine-render";
                 drm_memory_type = "drm-total-local0";
@@ -51,6 +49,8 @@ class GPU_fdinfo {
                 drm_engine_type = "drm-engine-gpu";
             }
 
+            find_fd();
+
             std::thread thread(&GPU_fdinfo::get_load, this);
             thread.detach();
         }