Add an "error" label in SDL_CreateRenderer (no op)

src/render/SDL_render.c

@@ -839,12 +839,12 @@ SDL_CreateRenderer(SDL_Window * window, int index, Uint32 flags)
 
     if (!window) {
         SDL_SetError("Invalid window");
-        return NULL;
+        goto error;
     }
 
     if (SDL_GetRenderer(window)) {
         SDL_SetError("Renderer already associated with window");
-        return NULL;
+        goto error;
     }
 
     if (SDL_GetHint(SDL_HINT_RENDER_VSYNC)) {
@@ -888,20 +888,23 @@ SDL_CreateRenderer(SDL_Window * window, int index, Uint32 flags)
         }
         if (index == n) {
             SDL_SetError("Couldn't find matching render driver");
-            return NULL;
+            goto error;
         }
     } else {
         if (index >= SDL_GetNumRenderDrivers()) {
             SDL_SetError("index must be -1 or in the range of 0 - %d",
                          SDL_GetNumRenderDrivers() - 1);
-            return NULL;
+            goto error;
         }
         /* Create a new renderer instance */
         renderer = render_drivers[index]->CreateRenderer(window, flags);
         batching = SDL_FALSE;
     }
 
-    if (renderer) {
+    if (!renderer) {
+        goto error;
+    }
+
     VerifyDrawQueueFunctions(renderer);
 
     /* let app/user override batching decisions. */
@@ -947,8 +950,12 @@ SDL_CreateRenderer(SDL_Window * window, int index, Uint32 flags)
 
     SDL_LogInfo(SDL_LOG_CATEGORY_RENDER,
                 "Created renderer: %s", renderer->info.name);
-    }
+
     return renderer;
+
+error:
+    return NULL;
+
 #else
     SDL_SetError("SDL not built with rendering support");
     return NULL;