# \[PATCH net-next v3\] r8152: Use guard clause and fix comment typos

- From: Prashant Malani \<hidden\>
- Date: 2019-09-30 20:41:19 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/09/11148591
- Thread: https://ratatoskr.run/netdev/2019/09/11148591/t.md

```text
Use a guard clause in tx_bottom() to reduce the indentation of the
do-while loop.

Also, fix a couple of spelling and grammatical mistakes in the
r8152_csum_workaround() function comment.

Change-Id: I460befde150ad92248fd85b0f189ec2df2ab8431
Signed-off-by: Prashant Malani <redacted>
Reviewed-by: Grant Grundler <redacted>
Acked-by: Hayes Wang <redacted>
---
 drivers/net/usb/r8152.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 08726090570e1..2c1faa8cf5fc9 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1688,7 +1688,7 @@ static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
 }
 
 /* r8152_csum_workaround()
- * The hw limites the value the transport offset. When the offset is out of the
+ * The hw limits the value of the transport offset. When the offset is out of
  * range, calculate the checksum by sw.
  */
 static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
@@ -2179,6 +2179,7 @@ static void tx_bottom(struct r8152 *tp)
 
 	do {
 		struct tx_agg *agg;
+		struct net_device *netdev = tp->netdev;
 
 		if (skb_queue_empty(&tp->tx_queue))
 			break;
@@ -2188,24 +2189,23 @@ static void tx_bottom(struct r8152 *tp)
 			break;
 
 		res = r8152_tx_agg_fill(tp, agg);
-		if (res) {
-			struct net_device *netdev = tp->netdev;
+		if (!res)
+			continue;
 
-			if (res == -ENODEV) {
-				rtl_set_unplug(tp);
-				netif_device_detach(netdev);
-			} else {
-				struct net_device_stats *stats = &netdev->stats;
-				unsigned long flags;
+		if (res == -ENODEV) {
+			rtl_set_unplug(tp);
+			netif_device_detach(netdev);
+		} else {
+			struct net_device_stats *stats = &netdev->stats;
+			unsigned long flags;
 
-				netif_warn(tp, tx_err, netdev,
-					   "failed tx_urb %d\n", res);
-				stats->tx_dropped += agg->skb_num;
+			netif_warn(tp, tx_err, netdev,
+				   "failed tx_urb %d\n", res);
+			stats->tx_dropped += agg->skb_num;
 
-				spin_lock_irqsave(&tp->tx_lock, flags);
-				list_add_tail(&agg->list, &tp->tx_free);
-				spin_unlock_irqrestore(&tp->tx_lock, flags);
-			}
+			spin_lock_irqsave(&tp->tx_lock, flags);
+			list_add_tail(&agg->list, &tp->tx_free);
+			spin_unlock_irqrestore(&tp->tx_lock, flags);
 		}
 	} while (res == 0);
 }
-- 
2.23.0.444.g18eeb5a265-goog

```