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Message-ID: <263695481.5978842.1709738958259.JavaMail.zimbra@rosalinux.ru>
Date: Wed, 6 Mar 2024 18:29:18 +0300 (MSK)
From: Михаил Лобанов <m.lobanov@...alinux.ru>
To: Rui Miguel Silva <rmfrfs@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev,
greybus-dev@...ts.linaro.org
Subject: Re: [PATCH] greybus: Fix deref of NULL in
__gb_lights_flash_brightness_set
Hi Rui, if you can, please prepare a patch with my reported-by tag.
Thanks!
Yours sincerely, Mikhail!
>Hi Mikhail,
>Mikhail Lobanov <m.lobanov@...alinux.ru> 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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