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 333A44C6A for ; Mon, 14 Nov 2022 13:04:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A9C7DC433D6; Mon, 14 Nov 2022 13:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1668431047; bh=6Baoi8UT51aqyaL2D1/eq7a+VBF9R5WvkxRsno5KC0o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Doll/MQWYaW8WU6GC7b2cmVmHJ2jPyhfCuV4rrsfvHuHQl9f1ix7KFsZ6alN6hZOh ulr7ux/LBdqbpTd5MVFh0k37urp9Fpza+lnfs3HJ2qOLQQx5xBcdpbBhOH1r5fYNQ1 gWB65KKu+GQSRUro/nUX1Ol/Q6MNdYu23RIGAaQI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhengchao Shao , Vadym Kochan , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.0 081/190] net: marvell: prestera: fix memory leak in prestera_rxtx_switch_init() Date: Mon, 14 Nov 2022 13:45:05 +0100 Message-Id: <20221114124502.211922155@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221114124458.806324402@linuxfoundation.org> References: <20221114124458.806324402@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 519b58bbfa825f042fcf80261cc18e1e35f85ffd ] When prestera_sdma_switch_init() failed, the memory pointed to by sw->rxtx isn't released. Fix it. Only be compiled, not be tested. Fixes: 501ef3066c89 ("net: marvell: prestera: Add driver for Prestera family ASIC devices") Signed-off-by: Zhengchao Shao Reviewed-by: Vadym Kochan Link: https://lore.kernel.org/r/20221108025607.338450-1-shaozhengchao@huawei.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/marvell/prestera/prestera_rxtx.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c index dc3e3ddc60bf..faa5109a09d7 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c @@ -776,6 +776,7 @@ static netdev_tx_t prestera_sdma_xmit(struct prestera_sdma *sdma, int prestera_rxtx_switch_init(struct prestera_switch *sw) { struct prestera_rxtx *rxtx; + int err; rxtx = kzalloc(sizeof(*rxtx), GFP_KERNEL); if (!rxtx) @@ -783,7 +784,11 @@ int prestera_rxtx_switch_init(struct prestera_switch *sw) sw->rxtx = rxtx; - return prestera_sdma_switch_init(sw); + err = prestera_sdma_switch_init(sw); + if (err) + kfree(rxtx); + + return err; } void prestera_rxtx_switch_fini(struct prestera_switch *sw) -- 2.35.1