On Thu, 17 Oct 2019 12:56:33 +0000
"Ardelean, Alexandru" <alexandru.Ardelean@xxxxxxxxxx> wrote:
> On Wed, 2019-10-16 at 22:25 +0800, Chuhong Yuan wrote:
> > ad9834_probe misses a check for devm_clk_get and may cause problems.
> > Add a check like what ad9832 does to fix it.
> >
>
> This could also use a Fixes tag, but not a big deal.
>
> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>
Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.
As a general point though, the fact that a devm error handler
actually has things to do suggests this code doesn't pass
the obviously correct test.
Nothing to do with this patch mind you!
Jonathan
>
> > Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
> > ---
> > drivers/staging/iio/frequency/ad9834.c | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/staging/iio/frequency/ad9834.c
> > b/drivers/staging/iio/frequency/ad9834.c
> > index 038d6732c3fd..23026978a5a5 100644
> > --- a/drivers/staging/iio/frequency/ad9834.c
> > +++ b/drivers/staging/iio/frequency/ad9834.c
> > @@ -417,6 +417,10 @@ static int ad9834_probe(struct spi_device *spi)
> > st = iio_priv(indio_dev);
> > mutex_init(&st->lock);
> > st->mclk = devm_clk_get(&spi->dev, NULL);
> > + if (IS_ERR(st->mclk)) {
> > + ret = PTR_ERR(st->mclk);
> > + goto error_disable_reg;
> > + }
> >
> > ret = clk_prepare_enable(st->mclk);
> > if (ret) {
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