linux-kernel - [PATCH v3 3/3] Staging: rtl8192e: Cleaning up error handling

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Message-ID: <AM9P190MB1299C167B21A1FAA157AF1C7A5B29@AM9P190MB1299.EURP190.PROD.OUTLOOK.COM>
Date:   Wed, 22 Jun 2022 17:12:46 +0200
From:   Felix Schlepper <f3sch.git@...look.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/3] Staging: rtl8192e: Cleaning up error handling

This error handling is more readable and reduces code size.

Signed-off-by: Felix Schlepper <f3sch.git@...look.com>
---
 drivers/staging/rtl8192e/rtllib_tx.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 1307cf55741a..b246f5e0cad7 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -214,19 +214,18 @@ static struct rtllib_txb *rtllib_alloc_txb(int nr_frags, int txb_size,
 
 	for (i = 0; i < nr_frags; i++) {
 		txb->fragments[i] = dev_alloc_skb(txb_size);
-		if (unlikely(!txb->fragments[i])) {
-			i--;
-			break;
-		}
+		if (unlikely(!txb->fragments[i]))
+			goto err_free;
 		memset(txb->fragments[i]->cb, 0, sizeof(txb->fragments[i]->cb));
 	}
-	if (unlikely(i != nr_frags)) {
-		while (i >= 0)
-			dev_kfree_skb_any(txb->fragments[i--]);
-		kfree(txb);
-		return NULL;
-	}
+
 	return txb;
+
+err_free:
+	while (--i >= 0)
+		dev_kfree_skb_any(txb->fragments[i]);
+
+	return NULL;
 }
 
 static int rtllib_classify(struct sk_buff *skb, u8 bIsAmsdu)
-- 
2.36.1