linux-kernel - Re: [alsa-devel] [PATCH] ASoC: Intel: mrfld: return error codes when an error occurs

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Message-ID: <96b4d153-2ee5-ea88-7176-a2d9ebf19982@linux.intel.com>
Date:   Mon, 10 Feb 2020 08:09:26 -0600
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Colin King <colin.king@...onical.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Vinod Koul <vkoul@...nel.org>,
        "Subhransu S . Prusty" <subhransu.s.prusty@...el.com>,
        alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH] ASoC: Intel: mrfld: return error codes when
 an error occurs



On 2/8/20 4:07 PM, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently function sst_platform_get_resources always returns zero and
> error return codes set by the function are never returned. Fix this
> by returning the error return code in variable ret rather than the
> hard coded zero.
> 
> Addresses-Coverity: ("Unused value")
> Fixes: f533a035e4da ("ASoC: Intel: mrfld - create separate module for pci part")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Yes, it's clearly bad.

Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

I don't think this impacts anyone though, the code can only be used for 
Merrifield/Tangier.

> ---
>   sound/soc/intel/atom/sst/sst_pci.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/atom/sst/sst_pci.c b/sound/soc/intel/atom/sst/sst_pci.c
> index d952719bc098..5862fe968083 100644
> --- a/sound/soc/intel/atom/sst/sst_pci.c
> +++ b/sound/soc/intel/atom/sst/sst_pci.c
> @@ -99,7 +99,7 @@ static int sst_platform_get_resources(struct intel_sst_drv *ctx)
>   	dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram);
>   do_release_regions:
>   	pci_release_regions(pci);
> -	return 0;
> +	return ret;
>   }
>   
>   /*
>