On Tue, 30 May 2017 16:35:27 +0530 Arvind Yadav <[email protected]> wrote:
> clk_prepare_enable() can fail here and we must check its return value. > > Signed-off-by: Arvind Yadav <[email protected]> Applied to the togreg branch of iio.git and pushed out as testing for the autobuilders to play with it. Thanks, Jonathan > --- > drivers/iio/adc/lpc32xx_adc.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/iio/adc/lpc32xx_adc.c b/drivers/iio/adc/lpc32xx_adc.c > index 0de709b..6a5b9a9 100644 > --- a/drivers/iio/adc/lpc32xx_adc.c > +++ b/drivers/iio/adc/lpc32xx_adc.c > @@ -76,10 +76,14 @@ static int lpc32xx_read_raw(struct iio_dev *indio_dev, > long mask) > { > struct lpc32xx_adc_state *st = iio_priv(indio_dev); > - > + int ret; > if (mask == IIO_CHAN_INFO_RAW) { > mutex_lock(&indio_dev->mlock); > - clk_prepare_enable(st->clk); > + ret = clk_prepare_enable(st->clk); > + if (ret) { > + mutex_unlock(&indio_dev->mlock); > + return ret; > + } > /* Measurement setup */ > __raw_writel(LPC32XXAD_INTERNAL | (chan->address) | > LPC32XXAD_REFp | LPC32XXAD_REFm,
