diff --git a/drivers/net/wireless/ath9k/hw.h b/drivers/net/wireless/ath9k/hw.h
index 5ba6a4b..c50faae 100644
--- a/drivers/net/wireless/ath9k/hw.h
+++ b/drivers/net/wireless/ath9k/hw.h
@@ -557,7 +557,7 @@
 void ath9k_hw_rfdetach(struct ath_hw *ah);
 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		   bool bChannelChange);
-bool ath9k_hw_fill_cap_info(struct ath_hw *ah);
+void ath9k_hw_fill_cap_info(struct ath_hw *ah);
 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
 			    u32 capability, u32 *result);
 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,