From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 17 Nov 2022 15:50:09 +0800
Subject: sfc: fix potential memleak in __ef100_hard_start_xmit()
Patch-mainline: v6.1-rc7
Git-commit: aad98abd5cb8133507f22654f56bcb443aaa2d89
References: git-fixes

The __ef100_hard_start_xmit() returns NETDEV_TX_OK without freeing skb
in error handling case, add dev_kfree_skb_any() to fix it.

Fixes: 51b35a454efd ("sfc: skeleton EF100 PF driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/1668671409-10909-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/sfc/ef100_netdev.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/sfc/ef100_netdev.c
+++ b/drivers/net/ethernet/sfc/ef100_netdev.c
@@ -200,6 +200,7 @@ static netdev_tx_t ef100_hard_start_xmit
 		   skb->len, skb->data_len, channel->channel);
 	if (!efx->n_channels || !efx->n_tx_channels || !channel) {
 		netif_stop_queue(net_dev);
+		dev_kfree_skb_any(skb);
 		goto err;
 	}