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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7314C4332F for ; Thu, 13 Oct 2022 05:50:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229628AbiJMFuq (ORCPT ); Thu, 13 Oct 2022 01:50:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229546AbiJMFuq (ORCPT ); Thu, 13 Oct 2022 01:50:46 -0400 Received: from mail-pg1-x52d.google.com (mail-pg1-x52d.google.com [IPv6:2607:f8b0:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30181EE8AE; Wed, 12 Oct 2022 22:50:45 -0700 (PDT) Received: by mail-pg1-x52d.google.com with SMTP id h185so701517pgc.10; Wed, 12 Oct 2022 22:50:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ZzglpC5mbRdLW9j3rb/103BSHrz15C42kGNA5aA2nE0=; b=UKSPc/M1Lon+j3O3SOYw9MJ2zanPgvc02TQ5DNxZolQ3mvOy90PA1LQib0AfgFcu5E GeY6zE+OP0Xrh9Zir+qY5XHsS0WUT/Onp0ON8sonvbUDhQM+uGxSYc6kATCNHLCc7wJ3 1GBVX0aB+Xjo6UDP/eqrEQ8tmA2IMicrsV0YinLaFLDAhInv7DiorCC/QTmkM44xruA9 ofPpkhBVufG0balWVBNZbnK6AAXKQGt3NVQn54oekSXuoXGth0pzyCYb5dyMz9sQ4oEJ gx3E2gtIrH5t+oJeZAx6esgwLPy//+CT2KMUSnx8zIxtGcfenfxaWNvFkWzPVK/s8FFy Gmng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ZzglpC5mbRdLW9j3rb/103BSHrz15C42kGNA5aA2nE0=; b=f9e/I5yz8EQHxPHVjJnNGL7D+QrgSbYH7n3TIZ8xcr6IHblYfqZOi9HMX//qAN9UGf hVTicLNBE/D8gUyl/aarKhp7j096q5wCgO7ogjBfV0A7dqL1dcXQKs0tvqfa0hhI2l8K uZQGGH9nHSj+5scfKeHJBf1FW+dqe7XArE5HYRrxPLNZUFr82LZr0K669ws5BcGHI8rO H8BcLvI3nTKfrneGrvWxfhURv+kq0yG5p1CXq38US1/E0rXWbIYMr7yba6MggAoaU1Yy Oow7k3gpx1xZK7eHV5cBky50kir7Gcwkve2+CJpcMbl0czj8cvVhf9fCl/D+2m0SZTX3 F7Tw== X-Gm-Message-State: ACrzQf3qPTGv0/XQ5fm91OcG6+ul2xrD59PPYjyRVTh5ztcKeUmOMaBk u2S9vAei80rpUtPHJ06qEeYoBEeIOCyNQg== X-Google-Smtp-Source: AMsMyM7yzkp2mNyivgowhvxnV39yZ0+ISwIQHG8SkCbYC+HjbN4G6d7iiMoRC0YwNpjL9zq/I8mJfw== X-Received: by 2002:a63:ff1b:0:b0:43c:e4ee:e5e0 with SMTP id k27-20020a63ff1b000000b0043ce4eee5e0mr27532658pgi.540.1665640244405; Wed, 12 Oct 2022 22:50:44 -0700 (PDT) Received: from localhost (ec2-3-6-129-254.ap-south-1.compute.amazonaws.com. [3.6.129.254]) by smtp.gmail.com with ESMTPSA id u9-20020a17090341c900b0017f7bef8cfasm11774337ple.281.2022.10.12.22.50.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Oct 2022 22:50:44 -0700 (PDT) From: pmanank200502@gmail.com To: rafael@kernel.org Cc: lenb@kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Manank Patel Subject: [PATCH] ACPI: acpi_pcc.c: Fix unintentional integer overflow Date: Thu, 13 Oct 2022 11:19:48 +0530 Message-Id: <20221013054947.1355884-1-pmanank200502@gmail.com> X-Mailer: git-send-email 2.38.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Manank Patel Fixed unintentional u32 overflow by casting it to u64 before multiplication. Signed-off-by: Manank Patel --- drivers/acpi/acpi_pcc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/acpi_pcc.c b/drivers/acpi/acpi_pcc.c index ee4ce5ba1fb2..b929d2e5c622 100644 --- a/drivers/acpi/acpi_pcc.c +++ b/drivers/acpi/acpi_pcc.c @@ -112,7 +112,7 @@ acpi_pcc_address_space_handler(u32 function, acpi_physical_address addr, * processor could be much slower to reply. So add an arbitrary * amount of wait on top of Nominal. */ - usecs_lat = PCC_CMD_WAIT_RETRIES_NUM * data->pcc_chan->latency; + usecs_lat = PCC_CMD_WAIT_RETRIES_NUM * ((u64) data->pcc_chan->latency); ret = wait_for_completion_timeout(&data->done, usecs_to_jiffies(usecs_lat)); if (ret == 0) { -- 2.38.0