ath9k: Remove the useless do..while loops

These are unnecessary constructs in a function.
This patch removes these from both RX and TX init
routines.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/ath9k.h

@@ -340,7 +340,7 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
 int ath_tx_init(struct ath_softc *sc, int nbufs);
-int ath_tx_cleanup(struct ath_softc *sc);
+void ath_tx_cleanup(struct ath_softc *sc);
 struct ath_txq *ath_test_get_txq(struct ath_softc *sc, struct sk_buff *skb);
 int ath_txq_update(struct ath_softc *sc, int qnum,
 		   struct ath9k_tx_queue_info *q);

drivers/net/wireless/ath9k/recv.c

@@ -283,14 +283,12 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 	struct ath_buf *bf;
 	int error = 0;
 
-	do {
 	spin_lock_init(&sc->rx.rxflushlock);
 	sc->sc_flags &= ~SC_OP_RXFLUSH;
 	spin_lock_init(&sc->rx.rxbuflock);
 
 	sc->rx.bufsize = roundup(IEEE80211_MAX_MPDU_LEN,
-					   min(sc->cachelsz,
-					       (u16)64));
+				 min(sc->cachelsz, (u16)64));
 
 	DPRINTF(sc, ATH_DBG_CONFIG, "cachelsz %u rxbufsize %u\n",
 		sc->cachelsz, sc->rx.bufsize);
@@ -302,14 +300,14 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 	if (error != 0) {
 		DPRINTF(sc, ATH_DBG_FATAL,
 			"failed to allocate rx descriptors: %d\n", error);
-			break;
+		goto err;
 	}
 
 	list_for_each_entry(bf, &sc->rx.rxbuf, list) {
 		skb = ath_rxbuf_alloc(sc, sc->rx.bufsize, GFP_KERNEL);
 		if (skb == NULL) {
 			error = -ENOMEM;
-				break;
+			goto err;
 		}
 
 		bf->bf_mpdu = skb;
@@ -323,14 +321,13 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 			DPRINTF(sc, ATH_DBG_FATAL,
 				"dma_mapping_error() on RX init\n");
 			error = -ENOMEM;
-				break;
+			goto err;
 		}
 		bf->bf_dmacontext = bf->bf_buf_addr;
 	}
 	sc->rx.rxlink = NULL;
 
-	} while (0);
-
+err:
 	if (error)
 		ath_rx_cleanup(sc);
 
@@ -345,10 +342,8 @@ void ath_rx_cleanup(struct ath_softc *sc)
 	list_for_each_entry(bf, &sc->rx.rxbuf, list) {
 		skb = bf->bf_mpdu;
 		if (skb) {
-			dma_unmap_single(sc->dev,
-					 bf->bf_buf_addr,
-					 sc->rx.bufsize,
-					 DMA_FROM_DEVICE);
+			dma_unmap_single(sc->dev, bf->bf_buf_addr,
+					 sc->rx.bufsize, DMA_FROM_DEVICE);
 			dev_kfree_skb(skb);
 		}
 	}

drivers/net/wireless/ath9k/xmit.c

@@ -2047,44 +2047,38 @@ int ath_tx_init(struct ath_softc *sc, int nbufs)
 {
 	int error = 0;
 
-	do {
 	spin_lock_init(&sc->tx.txbuflock);
 
 	error = ath_descdma_setup(sc, &sc->tx.txdma, &sc->tx.txbuf,
 				  "tx", nbufs, 1);
 	if (error != 0) {
 		DPRINTF(sc, ATH_DBG_FATAL,
-				"Failed to allocate tx descriptors: %d\n",
-				error);
-			break;
+			"Failed to allocate tx descriptors: %d\n", error);
+		goto err;
 	}
 
 	error = ath_descdma_setup(sc, &sc->beacon.bdma, &sc->beacon.bbuf,
 				  "beacon", ATH_BCBUF, 1);
 	if (error != 0) {
 		DPRINTF(sc, ATH_DBG_FATAL,
-				"Failed to allocate beacon descriptors: %d\n",
-				error);
-			break;
+			"Failed to allocate beacon descriptors: %d\n", error);
+		goto err;
 	}
 
-	} while (0);
-
+err:
 	if (error != 0)
 		ath_tx_cleanup(sc);
 
 	return error;
 }
 
-int ath_tx_cleanup(struct ath_softc *sc)
+void ath_tx_cleanup(struct ath_softc *sc)
 {
 	if (sc->beacon.bdma.dd_desc_len != 0)
 		ath_descdma_cleanup(sc, &sc->beacon.bdma, &sc->beacon.bbuf);
 
 	if (sc->tx.txdma.dd_desc_len != 0)
 		ath_descdma_cleanup(sc, &sc->tx.txdma, &sc->tx.txbuf);
-
-	return 0;
 }
 
 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)