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=ham 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 330CFC4361B for ; Tue, 15 Dec 2020 03:04:26 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CB972224D4 for ; Tue, 15 Dec 2020 03:04:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB972224D4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6AC006B0087; Mon, 14 Dec 2020 22:04:25 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6823D6B0088; Mon, 14 Dec 2020 22:04:25 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5BF286B0089; Mon, 14 Dec 2020 22:04:25 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0028.hostedemail.com [216.40.44.28]) by kanga.kvack.org (Postfix) with ESMTP id 4704F6B0087 for ; Mon, 14 Dec 2020 22:04:25 -0500 (EST) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 16F6D8249980 for ; Tue, 15 Dec 2020 03:04:25 +0000 (UTC) X-FDA: 77594023290.06.ant06_4a0157e27420 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin06.hostedemail.com (Postfix) with ESMTP id C9B221003FC39 for ; Tue, 15 Dec 2020 03:04:24 +0000 (UTC) X-HE-Tag: ant06_4a0157e27420 X-Filterd-Recvd-Size: 3719 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Tue, 15 Dec 2020 03:04:24 +0000 (UTC) Date: Mon, 14 Dec 2020 19:04:21 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001463; bh=DK/oMNI9eI/PlkkemlFEFdYvR5NlIxJWRxUDW93S+NQ=; h=From:To:Subject:In-Reply-To:From; b=YQI5bdF+Jc2Y5gWVFpI2Z7OWWMrMrKDU47v7uv2M/ZWju/R6LblirefDg+QdCgeWD SQCec76Cg80rHhC+4tfKyoz4mTbGVcLWXpzLYOqWDTntDlW9xPb54biGa4/aROHu3Y ffZNP62rU0YDSSAvWhrSdba0UUvC4FTQfMRfuAbw= 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 019/200] hwtracing: intel: use krealloc_array() Message-ID: <20201215030421.U9wToxbeW%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Bartosz Golaszewski Subject: hwtracing: intel: 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/20201109110654.12547-9-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski Cc: Alexander Shishkin Cc: Andy Shevchenko Cc: Borislav Petkov Cc: Borislav Petkov Cc: Christian Knig 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/hwtracing/intel_th/msu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/hwtracing/intel_th/msu.c~hwtracing-intel-use-krealloc_array +++ a/drivers/hwtracing/intel_th/msu.c @@ -2002,7 +2002,7 @@ nr_pages_store(struct device *dev, struc } nr_wins++; - rewin = krealloc(win, sizeof(*win) * nr_wins, GFP_KERNEL); + rewin = krealloc_array(win, nr_wins, sizeof(*win), GFP_KERNEL); if (!rewin) { kfree(win); return -ENOMEM; _