linux-kernel - Re: [PATCH 033/190] Revert "ASoC: img: Fix a reference count leak in img_i2s_in_set

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Date:   Tue, 27 Apr 2021 18:28:33 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Qiushi Wu <wu000273@....edu>, Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH 033/190] Revert "ASoC: img: Fix a reference count leak in
 img_i2s_in_set_fmt"

On Wed, Apr 21, 2021 at 02:58:28PM +0200, Greg Kroah-Hartman wrote:
> This reverts commit c4c59b95b7f7d4cef5071b151be2dadb33f3287b.
> 
> Commits from @umn.edu addresses have been found to be submitted in "bad
> faith" to try to test the kernel community's ability to review "known
> malicious" changes.  The result of these submissions can be found in a
> paper published at the 42nd IEEE Symposium on Security and Privacy
> entitled, "Open Source Insecurity: Stealthily Introducing
> Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
> of Minnesota) and Kangjie Lu (University of Minnesota).
> 
> Because of this, all submissions from this group must be reverted from
> the kernel tree and will need to be re-reviewed again to determine if
> they actually are a valid fix.  Until that work is complete, remove this
> change to ensure that no problems are being introduced into the
> codebase.
> 
> Cc: Qiushi Wu <wu000273@....edu>
> Cc: https
> Cc: Mark Brown <broonie@...nel.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
>  sound/soc/img/img-i2s-in.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/sound/soc/img/img-i2s-in.c b/sound/soc/img/img-i2s-in.c
> index 0843235d73c9..e30b66b94bf6 100644
> --- a/sound/soc/img/img-i2s-in.c
> +++ b/sound/soc/img/img-i2s-in.c
> @@ -343,10 +343,8 @@ static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
>  	chan_control_mask = IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
>  
>  	ret = pm_runtime_get_sync(i2s->dev);
> -	if (ret < 0) {
> -		pm_runtime_put_noidle(i2s->dev);
> +	if (ret < 0)
>  		return ret;
> -	}
>  
>  	for (i = 0; i < i2s->active_channels; i++)
>  		img_i2s_in_ch_disable(i2s, i);
> -- 
> 2.31.1
> 

Looks correct, dropping.

greg k-h