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net: systemport: fix potential memory leak in bcm_sysport_xmit()

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[ Upstream commit c401ed1c709948e57945485088413e1bb5e94bd1 ]

The bcm_sysport_xmit() returns NETDEV_TX_OK without freeing skb
in case of dma_map_single() fails, add dev_kfree_skb() to fix it.

Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Link: https://patch.msgid.link/20241014145115.44977-1-wanghai38@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wang Hai 2024-10-14 22:51:15 +08:00 • committed by Greg Kroah-Hartman
parent 389bdb093f
commit 31701ef0c4
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/broadcom/bcmsysport.c
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@ -1316,6 +1316,7 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
netif_err(priv, tx_err, dev, "DMA map failed at %p (len=%d)\n",
skb->data, skb_len);
ret = NETDEV_TX_OK;
dev_kfree_skb_any(skb);
goto out;
}