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 X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37E7DC43387 for ; Thu, 17 Jan 2019 10:39:06 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AA6022054F for ; Thu, 17 Jan 2019 10:39:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="0pw3ulKi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AA6022054F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43gLCq5rQbzDqjl for ; Thu, 17 Jan 2019 21:39:03 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=guoren@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="0pw3ulKi"; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 43gFVN2T0WzDqht for ; Thu, 17 Jan 2019 18:06:19 +1100 (AEDT) Received: from guoren-Inspiron-7460 (23.83.240.247.16clouds.com [23.83.240.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 353B920856; Thu, 17 Jan 2019 07:06:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547708777; bh=YQg5kK0CK1gygp8V+fUKHMM30p/aVFKoBFNquIpl8z4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=0pw3ulKi3jq4oKmvxSJxzzJsSdMcohB7IigecglkQT5Rx7a1QVi6VMiKG+7/EaK5C /1jqt2buqhHUph/IaPf93BCvJIFaI+XBcHutXpZ8WKrpTTySrlp18ZPjm07/tBc6Eg nedbQORGuNF/Dh36ZedpPIbDbRoH11rc3m/ItgOI= Date: Thu, 17 Jan 2019 15:06:03 +0800 From: Guo Ren To: Mike Rapoport Subject: Re: [PATCH 19/21] treewide: add checks for the return value of memblock_alloc*() Message-ID: <20190117070602.GA31839@guoren-Inspiron-7460> References: <1547646261-32535-1-git-send-email-rppt@linux.ibm.com> <1547646261-32535-20-git-send-email-rppt@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1547646261-32535-20-git-send-email-rppt@linux.ibm.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Mailman-Approved-At: Thu, 17 Jan 2019 21:37:31 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , linux-ia64@vger.kernel.org, devicetree@vger.kernel.org, Catalin Marinas , Heiko Carstens , x86@kernel.org, linux-mips@vger.kernel.org, Max Filippov , sparclinux@vger.kernel.org, Christoph Hellwig , linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Richard Weinberger , linux-sh@vger.kernel.org, Russell King , kasan-dev@googlegroups.com, Geert Uytterhoeven , Mark Salter , Dennis Zhou , Matt Turner , linux-snps-arc@lists.infradead.org, uclinux-h8-devel@lists.sourceforge.jp, Petr Mladek , linux-xtensa@linux-xtensa.org, linux-alpha@vger.kernel.org, linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, Rob Herring , Greentime Hu , xen-devel@lists.xenproject.org, Stafford Horne , Guan Xuetao , linux-arm-kernel@lists.infradead.org, Michal Simek , Tony Luck , linux-mm@kvack.org, Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Paul Burton , Vineet Gupta , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , openrisc@lists.librecores.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Jan 16, 2019 at 03:44:19PM +0200, Mike Rapoport wrote: > arch/csky/mm/highmem.c | 5 +++++ ... > diff --git a/arch/csky/mm/highmem.c b/arch/csky/mm/highmem.c > index 53b1bfa..3317b774 100644 > --- a/arch/csky/mm/highmem.c > +++ b/arch/csky/mm/highmem.c > @@ -141,6 +141,11 @@ static void __init fixrange_init(unsigned long start, unsigned long end, > for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) { > if (pmd_none(*pmd)) { > pte = (pte_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); > + if (!pte) > + panic("%s: Failed to allocate %lu bytes align=%lx\n", > + __func__, PAGE_SIZE, > + PAGE_SIZE); > + > set_pmd(pmd, __pmd(__pa(pte))); > BUG_ON(pte != pte_offset_kernel(pmd, 0)); > } Looks good for me and panic is ok. Reviewed-by: Guo Ren