netdev - [wpan-next 5/9] net: ieee802154: ca8210: Stop leaking skb's

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Message-Id: <20220120003645.308498-6-miquel.raynal@bootlin.com>
Date:   Thu, 20 Jan 2022 01:36:41 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org, Xue Liu <liuxuenetmail@...il.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        Harry Morris <harrymorris12@...il.com>,
        David Girault <david.girault@...vo.com>,
        Romuald Despres <romuald.despres@...vo.com>,
        Frederic Blain <frederic.blain@...vo.com>,
        Nicolas Schodet <nico@...fr.eu.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [wpan-next 5/9] net: ieee802154: ca8210: Stop leaking skb's

Upon error the ieee802154_xmit_complete() helper is not called. Only
ieee802154_wake_queue() is called manually. We then leak the skb
structure.

Free the skb structure upon error before returning.

Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
 drivers/net/ieee802154/ca8210.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index ece6ff6049f6..5d1b356cb9d3 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -1772,6 +1772,7 @@ static int ca8210_async_xmit_complete(
 		);
 		if (status != MAC_TRANSACTION_OVERFLOW) {
 			ieee802154_wake_queue(priv->hw);
+			dev_kfree_skb_any(atusb->tx_skb);
 			return 0;
 		}
 	}
-- 
2.27.0