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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 B80A7C433E0 for ; Tue, 26 May 2020 17:54:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 91CDA20849 for ; Tue, 26 May 2020 17:54:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="IPEzv0tC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389033AbgEZRyI (ORCPT ); Tue, 26 May 2020 13:54:08 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:39202 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388586AbgEZRyH (ORCPT ); Tue, 26 May 2020 13:54:07 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04QHrFmK035070; Tue, 26 May 2020 12:53:15 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590515595; bh=mTjyA08DkTl9/UxPwDQR7QnPE9aXKDpzBvfiE5znuqQ=; h=From:To:CC:Subject:Date; b=IPEzv0tCFFDQw7n4vfV24DixgLOT2M28LGIPOQM1DWeJ5vM/AzygY1sRE3XlZsPYY oUHugbWKcJlWoLzBXVYswhts2Ai4LtTYW/NaQzm7d4weVrQutaCcIR2iNGDlzC7AuX y6wwY5SBpSnCdr8XUXM9p2BpFTCU0LZ6M5r4AhA0= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04QHrFKv094636 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 May 2020 12:53:15 -0500 Received: from DLEE105.ent.ti.com (157.170.170.35) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 26 May 2020 12:52:48 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 26 May 2020 12:52:48 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04QHqmCI095113; Tue, 26 May 2020 12:52:48 -0500 From: Dan Murphy To: , , , CC: , , , Dan Murphy , kbuild test robot Subject: [PATCH] ASoC: tlv320adcx140: Fix warnings when using W=1 Date: Tue, 26 May 2020 12:52:47 -0500 Message-ID: <20200526175247.15309-1-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix the warnings when using the W=1 compiler flag. sound/soc/codecs/tlv320adcx140.c: In function ‘adcx140_reset’: sound/soc/codecs/tlv320adcx140.c:570:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] 570 | int ret = 0; | ^~~ This was set but only used in case where the reset GPIO is not defined. Have the function return the value of ret. sound/soc/codecs/tlv320adcx140.c: In function ‘adcx140_codec_probe’: sound/soc/codecs/tlv320adcx140.c:778:18: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 778 | if (bias_source < ADCX140_MIC_BIAS_VAL_VREF || | ^ sound/soc/codecs/tlv320adcx140.c:789:18: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 789 | if (vref_source < ADCX140_MIC_BIAS_VREF_275V || This condition will not occur since if the dt property is not set then the *_source variable is set to the default value. So there is no way that *_source can be less then 0. Which is what each #define is set to. The code just needs to make sure that the dt property is not out of the upper bounds. Reported-by: kbuild test robot Signed-off-by: Dan Murphy --- sound/soc/codecs/tlv320adcx140.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 472d759ba8a3..2fe0df3b7550 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -582,7 +582,7 @@ static int adcx140_reset(struct adcx140_priv *adcx140) /* 8.4.2: wait >= 10 ms after entering sleep mode. */ usleep_range(10000, 100000); - return 0; + return ret; } static int adcx140_hw_params(struct snd_pcm_substream *substream, @@ -772,8 +772,7 @@ static int adcx140_codec_probe(struct snd_soc_component *component) if (ret) bias_source = ADCX140_MIC_BIAS_VAL_VREF; - if (bias_source < ADCX140_MIC_BIAS_VAL_VREF || - bias_source > ADCX140_MIC_BIAS_VAL_AVDD) { + if (bias_source > ADCX140_MIC_BIAS_VAL_AVDD) { dev_err(adcx140->dev, "Mic Bias source value is invalid\n"); return -EINVAL; } @@ -783,8 +782,7 @@ static int adcx140_codec_probe(struct snd_soc_component *component) if (ret) vref_source = ADCX140_MIC_BIAS_VREF_275V; - if (vref_source < ADCX140_MIC_BIAS_VREF_275V || - vref_source > ADCX140_MIC_BIAS_VREF_1375V) { + if (vref_source > ADCX140_MIC_BIAS_VREF_1375V) { dev_err(adcx140->dev, "Mic Bias source value is invalid\n"); return -EINVAL; } -- 2.26.2