On Wed, Oct 19, 2016 at 06:32:09AM -0400, Brian Masney wrote:
> @@ -778,6 +796,8 @@ static ssize_t illuminance0_lux_table_store(struct device 
> *dev,
>               goto luxable_store_done;
>       }
>  
> +     mutex_lock(&chip->als_mutex);
> +
>       if (chip->taos_chip_status == TSL258X_CHIP_WORKING) {
>               ret = taos_chip_off(indio_dev);
>               if (ret < 0)
> @@ -794,6 +814,8 @@ static ssize_t illuminance0_lux_table_store(struct device 
> *dev,
>  
>       ret = len;
>  
> +     mutex_unlock(&chip->als_mutex);
> +
>  luxable_store_done:
>       return ret;
>  }


HAHAHHA HAHAHAH HAH AHHA HAHHAH AH HAHAHHAHAH AHHAHHAHAHHA HAHA HAHAHAH.

*wipes tear from eye*.  *continues laughing*.

HAHAHAHAHHAHAHA HAHA HAHAHAHA HAHAHA HAHAHAH AHAHAHAHA AHHAHAH.

This patch introduces a return with lock held bug.  All those do nothing
gotos, and we still missed when we actually had to do a "goto unlock".
If every function is special and complicated that reall means that no
functions are special.

Don't do do-nothing gotos.

regards,
dan carpenter

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