From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A31D1C29 for ; Wed, 23 Nov 2022 09:13:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D36BFC433C1; Wed, 23 Nov 2022 09:13:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1669194796; bh=s2ZugjKKraq1OoE+3K/jnt/bVrsxRgt3gJ3DKIDM/vs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TJQR5TuaimlbT+2yUmmcbtM2Uyo8jEP4PwS7qBSdSvLr1qzaY1d3vBrDrgsoMv9ik +/0nSb+R1ap5iIuoTZ7xUrnspY3vlpBo5oOr5tAX2W8L0M7SPvP1CU8TlFnefxpQw8 8Buq8UT//u4UxW7tmNArkQyHuR+sFjUfvwAuB7ss= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhengchao Shao , Paolo Abeni , Sasha Levin Subject: [PATCH 5.4 034/156] net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open() Date: Wed, 23 Nov 2022 09:49:51 +0100 Message-Id: <20221123084559.177459791@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221123084557.816085212@linuxfoundation.org> References: <20221123084557.816085212@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Zhengchao Shao [ Upstream commit f111606b63ff2282428ffbac0447c871eb957b6c ] When failed to init rxq or txq in mv643xx_eth_open() for opening device, napi isn't disabled. When open mv643xx_eth device next time, it will trigger a BUG_ON() in napi_enable(). Compile tested only. Fixes: 2257e05c1705 ("mv643xx_eth: get rid of receive-side locking") Signed-off-by: Zhengchao Shao Link: https://lore.kernel.org/r/20221109025432.80900-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/marvell/mv643xx_eth.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index 82ea55ae5053..10e5c4c59657 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2476,6 +2476,7 @@ static int mv643xx_eth_open(struct net_device *dev) for (i = 0; i < mp->rxq_count; i++) rxq_deinit(mp->rxq + i); out: + napi_disable(&mp->napi); free_irq(dev->irq, dev); return err; -- 2.35.1