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SubjectRe: [PATCH] media: atomisp-mt9m114: Fix pointer dereferenced before checking
On Mon, May 30, 2022 at 01:22:32PM +0200, Tommaso Merciai wrote:
> On Mon, May 30, 2022 at 03:58:01PM +0800, Haowen Bai wrote:
> > The info->data is dereferencing before null checking, so move
> > it after checking.
> >
> > Signed-off-by: Haowen Bai <baihaowen@meizu.com>
> > ---
> > drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
> > index 00d6842c07d6..3c81ab73cdae 100644
> > --- a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
> > +++ b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
> > @@ -616,13 +616,15 @@ static int mt9m114_get_intg_factor(struct i2c_client *client,
> > struct camera_mipi_info *info,
> > const struct mt9m114_res_struct *res)
> > {
> > - struct atomisp_sensor_mode_data *buf = &info->data;
> > + struct atomisp_sensor_mode_data *buf;
> > u32 reg_val;
> > int ret;
> >
> > if (!info)
> > return -EINVAL;
> >
> > + buf = &info->data;
> > +
> > ret = mt9m114_read_reg(client, MISENSOR_32BIT,
> > REG_PIXEL_CLK, &reg_val);
> > if (ret)
> > --
> > 2.7.4
> >
>
> Hi Haowen,
> Looks good to me, thanks.
>
> Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>

Hi,
My bad, Dan is right. Nothing to fix here.
Sorry for previous review.

Regards,
Tommaso
> --
> Tommaso Merciai
> Embedded Linux Engineer
> tommaso.merciai@amarulasolutions.com
> __________________________________
>
> Amarula Solutions SRL
> Via Le Canevare 30, 31100 Treviso, Veneto, IT
> T. +39 042 243 5310
> info@amarulasolutions.com
> www.amarulasolutions.com

--
Tommaso Merciai
Embedded Linux Engineer
tommaso.merciai@amarulasolutions.com
__________________________________

Amarula Solutions SRL
Via Le Canevare 30, 31100 Treviso, Veneto, IT
T. +39 042 243 5310
info@amarulasolutions.com
www.amarulasolutions.com

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