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Date:   Sat, 2 May 2020 19:00:20 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Radoslaw Biernacki <rad@...ihalf.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Ben Zhang <benzh@...omium.org>,
        Marcin Wojtas <mw@...ihalf.com>,
        Todd Broch <tbroch@...gle.com>,
        Alex Levin <levinale@...gle.com>,
        Vamshi Krishna <vamshi.krishna.gopal@...el.com>,
        Harshapriya <harshapriya.n@...el.com>,
        michal.sienkiewicz@...el.com, Lech Betlej <Lech.Betlej@...el.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        John Hsu <KCHSU0@...oton.com>, Yong Zhi <yong.zhi@...el.com>,
        Mac Chiang <mac.chiang@...el.com>
Cc:     kbuild-all@...ts.01.org, Ben Zhang <benzh@...omium.org>,
        Marcin Wojtas <mw@...ihalf.com>,
        Todd Broch <tbroch@...gle.com>,
        Alex Levin <levinale@...gle.com>,
        Vamshi Krishna <vamshi.krishna.gopal@...el.com>,
        Harshapriya <harshapriya.n@...el.com>,
        michal.sienkiewicz@...el.com, Lech Betlej <Lech.Betlej@...el.com>,
        Radoslaw Biernacki <rad@...ihalf.com>
Subject: Re: [PATCH V2] ASoC: Intel: boards: Use FS as nau8825 sysclk in
 nau88125_* machine

Hi Radoslaw,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asoc/for-next]
[also build test WARNING on sound/for-next v5.7-rc3 next-20200501]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Radoslaw-Biernacki/ASoC-Intel-boards-Use-FS-as-nau8825-sysclk-in-nau88125_-machine/20200502-044538
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: i386-allyesconfig (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@...el.com>

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All warnings (new ones prefixed by >>):

   sound/soc/intel/boards/skl_nau88l25_max98357a.c: In function 'platform_clock_control':
>> sound/soc/intel/boards/skl_nau88l25_max98357a.c:56:6: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int ret;
         ^~~

vim +/ret +56 sound/soc/intel/boards/skl_nau88l25_max98357a.c

0ab338ff33762d Sathyanarayana Nujella 2016-02-24  49  
8eaf2b31dd316f Rohit Ainapure         2015-12-11  50  static int platform_clock_control(struct snd_soc_dapm_widget *w,
8eaf2b31dd316f Rohit Ainapure         2015-12-11  51  	struct snd_kcontrol *k, int event)
8eaf2b31dd316f Rohit Ainapure         2015-12-11  52  {
8eaf2b31dd316f Rohit Ainapure         2015-12-11  53  	struct snd_soc_dapm_context *dapm = w->dapm;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  54  	struct snd_soc_card *card = dapm->card;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  55  	struct snd_soc_dai *codec_dai;
8eaf2b31dd316f Rohit Ainapure         2015-12-11 @56  	int ret;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  57  
dfb6ec7ae57d33 Pierre-Louis Bossart   2017-10-12  58  	codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);
8eaf2b31dd316f Rohit Ainapure         2015-12-11  59  	if (!codec_dai) {
8eaf2b31dd316f Rohit Ainapure         2015-12-11  60  		dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
8eaf2b31dd316f Rohit Ainapure         2015-12-11  61  		return -EIO;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  62  	}
8eaf2b31dd316f Rohit Ainapure         2015-12-11  63  
4adaffea05f2fa Radoslaw Biernacki     2020-05-01  64  	if (!SND_SOC_DAPM_EVENT_ON(event)) {
8eaf2b31dd316f Rohit Ainapure         2015-12-11  65  		ret = snd_soc_dai_set_sysclk(codec_dai,
8eaf2b31dd316f Rohit Ainapure         2015-12-11  66  				NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
8eaf2b31dd316f Rohit Ainapure         2015-12-11  67  		if (ret < 0) {
8eaf2b31dd316f Rohit Ainapure         2015-12-11  68  			dev_err(card->dev, "set sysclk err = %d\n", ret);
8eaf2b31dd316f Rohit Ainapure         2015-12-11  69  			return -EIO;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  70  		}
8eaf2b31dd316f Rohit Ainapure         2015-12-11  71  	}
8eaf2b31dd316f Rohit Ainapure         2015-12-11  72  
8eaf2b31dd316f Rohit Ainapure         2015-12-11  73  	return ret;
8eaf2b31dd316f Rohit Ainapure         2015-12-11  74  }
8eaf2b31dd316f Rohit Ainapure         2015-12-11  75  

:::::: The code at line 56 was first introduced by commit
:::::: 8eaf2b31dd316ff5ffbdad14853d2bf8779bab13 ASoC: Intel: Skylake: Add Nuvoton Maxim machine driver

:::::: TO: Rohit Ainapure <rohit.m.ainapure@...el.com>
:::::: CC: Mark Brown <broonie@...nel.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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