From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F5AAEB64DC for ; Wed, 19 Jul 2023 00:54:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229722AbjGSAyR (ORCPT ); Tue, 18 Jul 2023 20:54:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229655AbjGSAyO (ORCPT ); Tue, 18 Jul 2023 20:54:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAF171FE6 for ; Tue, 18 Jul 2023 17:53:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6B8F4615BF for ; Wed, 19 Jul 2023 00:52:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7645BC433C7; Wed, 19 Jul 2023 00:52:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689727959; bh=HfJ9IwkZpA0DnsGaCCPzZGNvi3wNsmCaWhNsFEfRRfw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=L8xrRIhgHZIA2vZzZcyfRAaoy16jSE6VTUL4iQ5afl+1gx7H9K6qRoWf4UT++eyM3 t9FupmSc1LxUt6LDKAFxRR7UWwIFTUNoIZkWBFL+g5yHcX9PqnoVn3XnQrLia8fO0E cnWqfYUIBSrq2lUJaUKWXkV5bbVeqlJlzR3sXb7VF10519O1IitxMcxBg71TpdSnxX hKpL4JHOQiwVh4tiA60p7eSVAHCaCYW9ODoWpOd0aQKunvp550gxXmSMjsl8AhtcR9 pfFKQXJ5TqMZneCmUvONnOAwHN1miSjYmBrLi9HzePPOhwNibdvZQZ59zw9dAbCL7O hG17WwBrvfpaQ== Date: Tue, 18 Jul 2023 17:52:38 -0700 From: Jakub Kicinski To: Minjie Du Cc: Horatiu Vultur , UNGLinuxDriver@microchip.com (maintainer:MICROCHIP LAN966X ETHERNET DRIVER), "David S. Miller" , Eric Dumazet , Paolo Abeni , Richard Cochran , netdev@vger.kernel.org (open list:MICROCHIP LAN966X ETHERNET DRIVER), linux-kernel@vger.kernel.org (open list), opensource.kernel@vivo.com, Simon Horman Subject: Re: [PATCH net v4] net: lan966x: fix parameter check in two functions Message-ID: <20230718175238.226810e3@kernel.org> In-Reply-To: <20230717022235.1767-1-duminjie@vivo.com> References: <20230717022235.1767-1-duminjie@vivo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 17 Jul 2023 10:22:35 +0800 Minjie Du wrote: > vrule = vcap_get_rule(lan966x->vcap_ctrl, rule_id); > - if (vrule) { > + if (!IS_ERR_OR_NULL(vrule)) { Please make vcap_get_rule() return an error pointer rather than NULL. Mixing the two is a common source of errors. -- pw-bot: cr