Re: [PATCH] greybus: Fix deref of NULL in __gb_lights_flash_brightness_set

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Hi Rui, if you can, please prepare a patch with my reported-by tag.
Thanks!

Yours sincerely, Mikhail!

>Hi Mikhail,
>Mikhail Lobanov <m.lobanov@xxxxxxxxxxxx> writes:
>
>
>Are you sending a new version with the changes suggested in this thread?
>or do you want me to prepare something with your reported-by tag?
>
>Cheers,
>    Rui

> ---
>  drivers/staging/greybus/light.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
> index 87d36948c610..929514350947 100644
> --- a/drivers/staging/greybus/light.c
> +++ b/drivers/staging/greybus/light.c
> @@ -148,10 +148,15 @@ static int __gb_lights_flash_brightness_set(struct gb_channel *channel)
>  						GB_CHANNEL_MODE_TORCH);
>  
>  	/* For not flash we need to convert brightness to intensity */
> -	intensity = channel->intensity_uA.min +
> +
> +	if (channel) {
> +		intensity = channel->intensity_uA.min +
>  			(channel->intensity_uA.step * channel->led->brightness);
>  
> -	return __gb_lights_flash_intensity_set(channel, intensity);
> +		return __gb_lights_flash_intensity_set(channel, intensity);
> +	}
> +
> +	return 0;
>  }
>  #else
>  static struct gb_channel *get_channel_from_cdev(struct led_classdev *cdev)
> -- 
> 2.43.0
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