Re: [PATCH 078/190] Revert "ASoC: cs43130: fix a NULL pointer dereference"

[Greg Kroah-Hartman]

On Wed, Apr 21, 2021 at 02:59:13PM +0200, Greg Kroah-Hartman wrote:
> This reverts commit a2be42f18d409213bb7e7a736e3ef6ba005115bb.
> 
> 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: Kangjie Lu <kjlu@xxxxxxx>
> Cc: Mark Brown <broonie@xxxxxxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
>  sound/soc/codecs/cs43130.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c
> index 80bc7c10ed75..c2b6f0ae6d57 100644
> --- a/sound/soc/codecs/cs43130.c
> +++ b/sound/soc/codecs/cs43130.c
> @@ -2319,8 +2319,6 @@ static int cs43130_probe(struct snd_soc_component *component)
>  			return ret;
>  
>  		cs43130->wq = create_singlethread_workqueue("cs43130_hp");
> -		if (!cs43130->wq)
> -			return -ENOMEM;
>  		INIT_WORK(&cs43130->work, cs43130_imp_meas);
>  	}
>  
> -- 
> 2.31.1
> 

The original patch here is not correct, lots of resources are allocated
and files created that are not unwound.  I will keep this revert and fix
it up "properly".

thanks,

greg k-h