From patchwork Tue Oct 27 12:17:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 11860149 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E0ACD14B2 for ; Tue, 27 Oct 2020 12:17:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF4BE222EA for ; Tue, 27 Oct 2020 12:17:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="zjDtGi7Y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2899711AbgJ0MRq (ORCPT ); Tue, 27 Oct 2020 08:17:46 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:40033 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2899672AbgJ0MRp (ORCPT ); Tue, 27 Oct 2020 08:17:45 -0400 Received: by mail-wr1-f68.google.com with SMTP id h5so1638685wrv.7 for ; Tue, 27 Oct 2020 05:17:43 -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=83y0wprNKfgsPdFQwYqYyBfxNCy5k5K/4PHHSUQ4ytQ=; b=zjDtGi7YCC7prpyZ+g0XEgVkSu5ur1n0Z+4Onn8lSH6l5HhaPb2usVEdHqyUF70A1t aUTOf8Tq+CbFmCsQoZg/QZDfe6BYR/DFPrrBJwD6HiW7tjdfR/sBEWsWaZKnLZINtomX mE7Ig/cZHx2rYZqBTjkzv3ijY8hAIfVQDit/QeJSY5MeOkcFLBiM+J08PWHqktFzZQwX UlgrIFCSx9xqlv1zNEtaXs3tPI9VHBmr65ek6JPy/L/FS56cLdvQizETmDuasggJPK/w ztxubnZy+sT2oOAiJOCkZTqyimYvjT8WSyK/j0zpzQcNL15qg7LbhswKDAJng2PiYjm9 YBtA== 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=83y0wprNKfgsPdFQwYqYyBfxNCy5k5K/4PHHSUQ4ytQ=; b=YqV5dd6KVW7AofucJfExYz2iBJj8h6GBcS2OKBaDnDGOR1NurN0ye/c+Y0DQfs3zd1 dA2BPD/uv7kBt3gvrmcc2jOO/JvD2LEHAwbZEZp1MLOwThGI7Ql6ZuCnx91pJM0RWrsf RKG7Mh1D8GIssuQg0+Jc6neh2IE+judaLzhkwxHlChWqpLVg0HdZwYeH+PKD26txBN/Y 2cB3RTcL12kT+Jrd4/bzuMbpOZju11WimUpq/p2YWyDVBzmeW5Oikd7BtwMcVt5CbXzm GvAoCersVlRFBYHo5VlWnOYoCAtg6VM2jRCFPloiKJpElGiZsR0DXsFbZwCwKufued6A TAgg== X-Gm-Message-State: AOAM532CEZo0u7qCCSlm2eM72r1e1fSttblU1J5VtikJvuGu8p+oir0n uooAgoqKp9MLqjERkC20VRidJQ== X-Google-Smtp-Source: ABdhPJxMHI/sTmjLh3ji2z2BWBH7Xp+55j5r8SrJ3qqB6liqhHnL/S90fy042cmGylsf7I4Q+2Y+Yg== X-Received: by 2002:a5d:6a49:: with SMTP id t9mr2477521wrw.194.1603801062271; Tue, 27 Oct 2020 05:17:42 -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.55.2020.10.27.05.17.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Oct 2020 05:17:41 -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 3/8] vhost: vringh: use krealloc_array() Date: Tue, 27 Oct 2020 13:17:20 +0100 Message-Id: <20201027121725.24660-4-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 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: Michael S. Tsirkin --- drivers/vhost/vringh.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index 8bd8b403f087..08a0e1c842df 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -198,7 +198,8 @@ static int resize_iovec(struct vringh_kiov *iov, gfp_t gfp) flag = (iov->max_num & VRINGH_IOV_ALLOCATED); if (flag) - new = krealloc(iov->iov, new_num * sizeof(struct iovec), gfp); + new = krealloc_array(iov->iov, new_num, + sizeof(struct iovec), gfp); else { new = kmalloc_array(new_num, sizeof(struct iovec), gfp); if (new) {