From patchwork Tue Nov 21 05:52:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13462532 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1375CA0; Mon, 20 Nov 2023 21:53:07 -0800 (PST) X-IronPort-AV: E=Sophos;i="6.04,215,1695654000"; d="scan'208";a="183694779" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 21 Nov 2023 14:53:07 +0900 Received: from localhost.localdomain (unknown [10.166.13.99]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 41D16400A10C; Tue, 21 Nov 2023 14:53:07 +0900 (JST) From: Yoshihiro Shimoda To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH net] net: rswitch: Fix error path in rswitch_start_xmit() Date: Tue, 21 Nov 2023 14:52:55 +0900 Message-Id: <20231121055255.3627949-1-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org This .ndo_start_xmit() function should return netdev_tx_t value, not -ENOMEM. Also, before returning the function, dev_kfree_skb_any() should be called. So, fix them. Fixes: 33f5d733b589 ("net: renesas: rswitch: Improve TX timestamp accuracy") Signed-off-by: Yoshihiro Shimoda --- drivers/net/ethernet/renesas/rswitch.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c index 43a7795d6591..fc9dcf5fa166 100644 --- a/drivers/net/ethernet/renesas/rswitch.c +++ b/drivers/net/ethernet/renesas/rswitch.c @@ -1535,7 +1535,8 @@ static netdev_tx_t rswitch_start_xmit(struct sk_buff *skb, struct net_device *nd ts_info = kzalloc(sizeof(*ts_info), GFP_ATOMIC); if (!ts_info) { dma_unmap_single(ndev->dev.parent, dma_addr, skb->len, DMA_TO_DEVICE); - return -ENOMEM; + dev_kfree_skb_any(skb); + return ret; } skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;