On Fri, Jun 07, 2019 at 09:39:57AM +0200, walter harms wrote:
>
>
> Am 07.06.2019 09:27, schrieb Dan Carpenter:
> > This should check that "i" is within bounds before checking reading from
> > the array.
> >
> > Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")
> > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > ---
> > drivers/gpu/drm/bridge/sii902x.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> > index d6f98d388ac2..6b03616d6bc3 100644
> > --- a/drivers/gpu/drm/bridge/sii902x.c
> > +++ b/drivers/gpu/drm/bridge/sii902x.c
> > @@ -589,8 +589,8 @@ static int sii902x_audio_hw_params(struct device *dev, void *data,
> > if (ret)
> > goto out;
> >
> > - for (i = 0; sii902x->audio.i2s_fifo_sequence[i] &&
> > - i < ARRAY_SIZE(sii902x->audio.i2s_fifo_sequence); i++)
> > + for (i = 0; i < ARRAY_SIZE(sii902x->audio.i2s_fifo_sequence) &&
> > + sii902x->audio.i2s_fifo_sequence[i]; i++)
> > regmap_write(sii902x->regmap,
> > SII902X_TPI_I2S_ENABLE_MAPPING_REG,
> > sii902x->audio.i2s_fifo_sequence[i]);
>
>
> mmmh, i am a big fan of KISS and in this case i would check sii902x->audio.i2s_fifo_sequence[i]
> outside for(). like:
>
> for (i = 0; i < ARRAY_SIZE(sii902x->audio.i2s_fifo_sequence); i++) {
> if (!sii902x->audio.i2s_fifo_sequence[i])
> break;
That's probably a better way, but either way is acceptable and I left it
how the author wrote it.
regards,
dan carpenter
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