Received: by 2002:ac0:bc90:0:0:0:0:0 with SMTP id a16csp32970img; Thu, 21 Mar 2019 13:24:12 -0700 (PDT) X-Google-Smtp-Source: APXvYqwqOyZqBjqEqcAdVNdNeACSB5Uu66gcF0SgTdsz7s/kTMUp1ULIn3Vgkh1DO9AC5Jl0A+Nn X-Received: by 2002:a17:902:7e49:: with SMTP id a9mr5147844pln.303.1553199852111; Thu, 21 Mar 2019 13:24:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1553199852; cv=none; d=google.com; s=arc-20160816; b=aqVWfXFDvYBHXEnFvtrEipGR2nNNvj6ry+L2mKsrypIWHaMZHWSUXmLy6Umg2h2Acl Cpc5jtVwuKAVLf78aDSUPS8/DYEmOBnkTsEHfA86oy3KkHlnWWzBxGJLHnlWzVv8QubV t0wDgRSLaCuhrrBbBTBk/p6dbHfNr6WzFat38jg1XjydVpTW3C0M0STNw2QgJg8PQqSP glItiGUpJmQse3rVGuU7NNQx+WoEN5rFImzjS6KgEVCKaKQniHrFHPt+x7PD6y8xQrnX JwEi4gL3o6CijIon+pq4ZVJuI5rE0FNkrxSib5xfnCuAGA4OjrwrYW76ZBoc7xICqlTn PZ6Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=H5d0ELHQyMvlc/HXzgbJA1lTRR2KnONBsTvBPmBZOmk=; b=Df7vbrHPJGiwb47vaRLS7VxOsaEBElCcZCoDzawGvRSyo9BrOfcSLwHJtVE0/xbHYk 2KyjIw5qkpA3vxSfk1Hy3/a9DOJ1HVrCc/+n+IyhgNMR6UKXDP/yTwh7MCsgPbAbKqHE JNvPmAzOkUwwgSRqrKWQifJxUDBIW9qw6QoQxvWaxj84hEO/WcVnX0lZbRGsHVOpDzSq /Ulf+bPZGVrMzg1Mbld3R52Vbk53AOhcoUtrYVy0+B21LqyzXpVaBbNMxX/hhlXAFigr i23LUEuhWz9nTjax15wwjYpHLnsk3WFoOkLipvhmAnWVT+V/NR3q3OrtaoQpLhJboOJD mCiA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n5si4743331pff.191.2019.03.21.13.23.57; Thu, 21 Mar 2019 13:24:12 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728852AbfCUUW5 (ORCPT + 99 others); Thu, 21 Mar 2019 16:22:57 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:52744 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728316AbfCUUW5 (ORCPT ); Thu, 21 Mar 2019 16:22:57 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id DE709133E9775; Thu, 21 Mar 2019 13:22:56 -0700 (PDT) Date: Thu, 21 Mar 2019 13:22:56 -0700 (PDT) Message-Id: <20190321.132256.242396753611559420.davem@davemloft.net> To: harini.katakam@xilinx.com Cc: nicolas.ferre@microchip.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michal.simek@xilinx.com, harinikatakamlinux@gmail.com Subject: Re: [PATCH] net: macb: Add null check for PCLK and HCLK From: David Miller In-Reply-To: <1553089342-2789-1-git-send-email-harini.katakam@xilinx.com> References: <1553089342-2789-1-git-send-email-harini.katakam@xilinx.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Thu, 21 Mar 2019 13:22:57 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Harini Katakam Date: Wed, 20 Mar 2019 19:12:22 +0530 > Both PCLK and HCLK are "required" clocks according to macb devicetree > documentation. There is a chance that devm_clk_get doesn't return a > negative error but just a NULL clock structure instead. In such a case > the driver proceeds as usual and uses pclk value 0 to calculate MDC > divisor which is incorrect. Hence fix the same in clock initialization. > > Signed-off-by: Harini Katakam Applied, thanks.