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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 79D09C2BB48 for ; Tue, 15 Dec 2020 03:05:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E890224DE for ; Tue, 15 Dec 2020 03:05:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727223AbgLODFk (ORCPT ); Mon, 14 Dec 2020 22:05:40 -0500 Received: from mail.kernel.org ([198.145.29.99]:33316 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726720AbgLODFY (ORCPT ); Mon, 14 Dec 2020 22:05:24 -0500 Date: Mon, 14 Dec 2020 19:04:25 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001467; bh=S0dvEhvKNFIPOyx+4aAgVRflhvPv75DVW9XU8r6JMqk=; h=From:To:Subject:In-Reply-To:From; b=mYCeNQp90NMyCI0TSPw/o+8K2C18AL1VWSTFxW/5xH0GGcRpXSudc8DHPau09zPL1 qMCUakqgAn0/qyuAIRpjE3FrTFXphtLqhLmz41gzdBtwPEaT1gFcuSIzQs6mvFdjyv DA3pkusQDc7FR5DseGZyhcMQfFETUtZmpa806hck= From: Andrew Morton To: airlied@linux.ie, akpm@linux-foundation.org, alexander.shishkin@linux.intel.com, andriy.shevchenko@linux.intel.com, bgolaszewski@baylibre.com, bp@alien8.de, bp@suse.de, christian.koenig@amd.com, cl@linux.com, daniel.vetter@ffwll.ch, daniel@ffwll.ch, gustavo@padovan.org, iamjoonsoo.kim@lge.com, james.morse@arm.com, jasowang@redhat.com, linus.walleij@linaro.org, linux-mm@kvack.org, maarten.lankhorst@linux.intel.com, mchehab@kernel.org, mm-commits@vger.kernel.org, mripard@kernel.org, mst@redhat.com, penberg@kernel.org, perex@perex.cz, rientjes@google.com, rric@kernel.org, sumit.semwal@linaro.org, tiwai@suse.com, tiwai@suse.de, tony.luck@intel.com, torvalds@linux-foundation.org, tzimmermann@suse.de, vbabka@suse.cz Subject: [patch 020/200] dma-buf: use krealloc_array() Message-ID: <20201215030425.glaMg3ez3%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org =46rom: Bartosz Golaszewski Subject: dma-buf: use krealloc_array() Use the helper that checks for overflows internally instead of manually calculating the size of the new array. Link: https://lkml.kernel.org/r/20201109110654.12547-10-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski Acked-by: Christian K=C3=B6nig Cc: Alexander Shishkin Cc: Andy Shevchenko Cc: Borislav Petkov Cc: Borislav Petkov Cc: Christoph Lameter Cc: Daniel Vetter Cc: Daniel Vetter Cc: David Airlie Cc: David Rientjes Cc: Gustavo Padovan Cc: James Morse Cc: Jaroslav Kysela Cc: Jason Wang Cc: Joonsoo Kim Cc: Linus Walleij Cc: Maarten Lankhorst Cc: Mauro Carvalho Chehab Cc: Maxime Ripard Cc: "Michael S . Tsirkin" Cc: Pekka Enberg Cc: Robert Richter Cc: Sumit Semwal Cc: Takashi Iwai Cc: Takashi Iwai Cc: Thomas Zimmermann Cc: Tony Luck Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- drivers/dma-buf/sync_file.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/dma-buf/sync_file.c~dma-buf-use-krealloc_array +++ a/drivers/dma-buf/sync_file.c @@ -270,8 +270,7 @@ static struct sync_file *sync_file_merge fences[i++] =3D dma_fence_get(a_fences[0]); =20 if (num_fences > i) { - nfences =3D krealloc(fences, i * sizeof(*fences), - GFP_KERNEL); + nfences =3D krealloc_array(fences, i, sizeof(*fences), GFP_KERNEL); if (!nfences) goto err; =20 _