From patchwork Tue Oct 27 12:17:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 68352 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kXNve-002asq-Nm; Tue, 27 Oct 2020 12:18:19 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750980AbgJ0MSL (ORCPT + 1 other); Tue, 27 Oct 2020 08:18:11 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:45056 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2899720AbgJ0MRu (ORCPT ); Tue, 27 Oct 2020 08:17:50 -0400 Received: by mail-wr1-f65.google.com with SMTP id e17so1608674wru.12 for ; Tue, 27 Oct 2020 05:17:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4ajG2eJaPSZ0bX/1WDeWm0EaqfEJqxAhsr1ZG8pJATY=; b=XHOIZDPFdLQqYweDS35MDqPOY+CIlpJefK0zBWfY0YBTimhWcawEQs8dTrakE90RO7 AfsytdKycv6sjHXN2trxR/+eOiuM7wcXVt5IB8qtwwAQMxE4BkNW/+a/GHnw+CWx2wsB hGq7TZ6iovNwqijODvBmZWQde1pIjIB5HPsJl/6X5swnxCmi/14lryrQsGpQHt5jA5cY IH9hXgKEdIPUw1YcA/W+R9L29LSTdk7ImHzGZaTNpbL+xJ2ChLwLclaOJCS3Z4u/Bf9u JVbkgQtqzawUBytpFhmYgsiop5B0mx4A7abqvzrfSU90qALU5F3Ra0TXyhHJ+ZhCt7b5 VUBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4ajG2eJaPSZ0bX/1WDeWm0EaqfEJqxAhsr1ZG8pJATY=; b=XPM6aAVxOAkhR+285mfKYCKpTprBLsrPaBKK3r81o73aTbtvumOfKagDzsNhBfSk5p GyV8Qf50+4xwWoRxcTe0UOAw4DBCXerbo5WqPJQucaMN5xTcNbudnKPDPLI/EFfc7kCj 7RA0sJGmzI7QK0yReUlmnI+ibl1St0a9zYCSfRP157F8PRlCbZWekWTNHHWjLBxIyFM/ sOSiIrj0KKVCitK0Ca9/Dr2xDGZNhCktdkIJ0XN+GuIrMx5L9hk1uwkt/QiPLrEizh/G PAusdc6Kg5rsZ107GzdfvBHrq5oOtGy5LDzGecKQeTW4ikV9StG3MB7cC0ej13xVnqo9 gItA== X-Gm-Message-State: AOAM5312wYEuxAamIj6LGTNjw8xug/46FhOcriR4ciVVs8NMqiiurxNR wFaqk8qGZQXYmGNsbL1073KiNA== X-Google-Smtp-Source: ABdhPJxi+QacVHd5+AE8Jqv2dW1ZUW5QhwXfI6u/s0dk/pyhkeRg2gSWT3PEaZdn2SLI49Q2m9AoSg== X-Received: by 2002:a5d:4ac1:: with SMTP id y1mr2494500wrs.303.1603801068178; Tue, 27 Oct 2020 05:17:48 -0700 (PDT) Received: from debian-brgl.home (amarseille-656-1-4-167.w90-8.abo.wanadoo.fr. [90.8.158.167]) by smtp.gmail.com with ESMTPSA id a2sm1731908wrs.55.2020.10.27.05.17.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Oct 2020 05:17:47 -0700 (PDT) From: Bartosz Golaszewski To: Andy Shevchenko , Sumit Semwal , Gustavo Padovan , =?utf-8?q?Christian_K=C3=B6nig?= , Mauro Carvalho Chehab , Borislav Petkov , Tony Luck , James Morse , Robert Richter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Alexander Shishkin , Linus Walleij , "Michael S . Tsirkin" , Jason Wang , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Jaroslav Kysela , Takashi Iwai Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-gpio@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-mm@kvack.org, alsa-devel@alsa-project.org, Bartosz Golaszewski Subject: [PATCH 6/8] drm: atomic: use krealloc_array() Date: Tue, 27 Oct 2020 13:17:23 +0100 Message-Id: <20201027121725.24660-7-brgl@bgdev.pl> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027121725.24660-1-brgl@bgdev.pl> References: <20201027121725.24660-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.4 (--) X-LSpam-Report: No, score=-2.4 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no From: Bartosz Golaszewski Use the helper that checks for overflows internally instead of manually calculating the size of the new array. Signed-off-by: Bartosz Golaszewski Acked-by: Daniel Vetter --- drivers/gpu/drm/drm_atomic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 58527f151984..09ad6a2ec17b 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -960,7 +960,8 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state, struct __drm_connnectors_state *c; int alloc = max(index + 1, config->num_connector); - c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL); + c = krealloc_array(state->connectors, alloc, + sizeof(*state->connectors), GFP_KERNEL); if (!c) return ERR_PTR(-ENOMEM);