diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index db6ba433c05d769b15988a328765b19de1fa470d..72ba36a0483711de8d6b8ce1c53bc531107ee69d 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1397,7 +1397,6 @@ struct ath5k_hw {
 	u32			ah_txq_isr_txok_all;
 	u32			ah_txq_isr_txurn;
 	u32			ah_txq_isr_qcborn;
-	u32			ah_txq_isr_qcburn;
 
 	u32			*ah_rf_banks;
 	size_t			ah_rf_banks_size;
diff --git a/drivers/net/wireless/ath/ath5k/dma.c b/drivers/net/wireless/ath/ath5k/dma.c
index 78b87372da95a0769dcde654291028f6f795dda0..faea3262368f88af77b6250b34cbd77f90c48a62 100644
--- a/drivers/net/wireless/ath/ath5k/dma.c
+++ b/drivers/net/wireless/ath/ath5k/dma.c
@@ -716,11 +716,8 @@ ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask)
 		}
 
 		/* A queue got CBR underrun */
-		if (unlikely(pisr & (AR5K_ISR_QCBRURN))) {
+		if (unlikely(pisr & (AR5K_ISR_QCBRURN)))
 			*interrupt_mask |= AR5K_INT_QCBRURN;
-			ah->ah_txq_isr_qcburn |= AR5K_REG_MS(sisr3,
-						AR5K_SISR3_QCBRURN);
-		}
 
 		/* A queue got triggered */
 		if (unlikely(pisr & (AR5K_ISR_QTRIG)))