diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 8f67004..e698ed5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -598,7 +598,7 @@
 			      u32 value);
 	void (*ref)(struct iwl_trans *trans);
 	void (*unref)(struct iwl_trans *trans);
-	void (*suspend)(struct iwl_trans *trans);
+	int  (*suspend)(struct iwl_trans *trans);
 	void (*resume)(struct iwl_trans *trans);
 
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans);
@@ -807,10 +807,12 @@
 		trans->ops->unref(trans);
 }
 
-static inline void iwl_trans_suspend(struct iwl_trans *trans)
+static inline int iwl_trans_suspend(struct iwl_trans *trans)
 {
-	if (trans->ops->suspend)
-		trans->ops->suspend(trans);
+	if (!trans->ops->suspend)
+		return 0;
+
+	return trans->ops->suspend(trans);
 }
 
 static inline void iwl_trans_resume(struct iwl_trans *trans)