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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 F3E7FC432C3 for ; Sat, 16 Nov 2019 16:23:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C163521479 for ; Sat, 16 Nov 2019 16:23:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573921438; bh=ItMXgs/Q9kt+48rsthlnVhaH6dBjICpKcSlbQsKI+IQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2uwmCQ1Pyx+rPGu78T1dVNa5IOAVXfZx2oCwu2kyFi54kMV3FNL5sPDXkcwbwUdc7 AmI12F6C7FfE04fQoLo8gTuh6nF1VxlNjFD0+krVFmSddNKewWUyxcvJA8LNPpqhvu iCnA5f06w83FMpCbCnyljPkbYWJhcNdumBWzs2c0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728435AbfKPPmq (ORCPT ); Sat, 16 Nov 2019 10:42:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:46308 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728363AbfKPPmg (ORCPT ); Sat, 16 Nov 2019 10:42:36 -0500 Received: from sasha-vm.mshome.net (unknown [50.234.116.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CD4DC2083E; Sat, 16 Nov 2019 15:42:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573918956; bh=ItMXgs/Q9kt+48rsthlnVhaH6dBjICpKcSlbQsKI+IQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VQb7alXoAUWQ221mFX5hlZe2Pm0PP4gW6viRWnEA149MWFqltC+Qu00ApFVeAFdK8 68fKtCCMfISeRp3F+sAuHMWVAEvlcRfY7CQT/sOfzPbQMW6iK20ZrR8Bm++7NxONqw 29OSiOztYO3wkcLhVp0b1yxlODMG+gud94NfrjWI= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Philipp Klocke , Takashi Iwai , Sasha Levin , clang-built-linux@googlegroups.com Subject: [PATCH AUTOSEL 4.19 074/237] ALSA: i2c/cs8427: Fix int to char conversion Date: Sat, 16 Nov 2019 10:38:29 -0500 Message-Id: <20191116154113.7417-74-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191116154113.7417-1-sashal@kernel.org> References: <20191116154113.7417-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Philipp Klocke [ Upstream commit eb7ebfa3c1989aa8e59d5e68ab3cddd7df1bfb27 ] Compiling with clang yields the following warning: sound/i2c/cs8427.c:140:31: warning: implicit conversion from 'int' to 'char' changes value from 160 to -96 [-Wconstant-conversion] data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF; ~ ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ Because CS8427_REG_AUTOINC is defined as 128, it is too big for a char field. So change data from char to unsigned char, that it can hold the value. This patch does not change the generated code. Signed-off-by: Philipp Klocke Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/i2c/cs8427.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c index 2647309bc6757..8afa2f8884660 100644 --- a/sound/i2c/cs8427.c +++ b/sound/i2c/cs8427.c @@ -118,7 +118,7 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device, struct cs8427 *chip = device->private_data; char *hw_data = udata ? chip->playback.hw_udata : chip->playback.hw_status; - char data[32]; + unsigned char data[32]; int err, idx; if (!memcmp(hw_data, ndata, count)) -- 2.20.1