document entry point

rust/src/main.rs

@@ -978,16 +978,18 @@ fn wait_infinity(wait_type: WaitType, reboot_now: Arc<AtomicBool>) -> ! {
 fn main() {
     let result = safe_main();
     match result {
+        // this should not get triggered, safe_main should not return but go into deep sleep with sensbile
+        // timeout, this is just a fallback
         Ok(_) => {
             println!("Main app finished, restarting");
             BOARD_ACCESS.lock().unwrap().set_restart_to_conf(false);
             BOARD_ACCESS.lock().unwrap().deep_sleep(1);
         }
+        // if safe_main exists with error, rollback to known good ota version
         Err(err) => {
             println!("Failed main {}", err);
             let rollback_successful = rollback_and_reboot();
-            println!("Failed to rollback :(");
-            rollback_successful.unwrap();
+            panic!("Failed to rollback :(");
         }
     }
 }