On Sat, Nov 19, 2016 at 12:08:34PM +0100, Christophe JAILLET wrote: > Commit a98461d79ba5 ("staging: iio: ad9832: add DVDD regulator") and > commit 43a07e48af44 ("staging: iio: ad9832: clean-up regulator 'reg'") add > some dereference of 'st' which is an un-initialized pointer at this point. > > Re-order code and tweak error handling in order to allocate memory and have > 'st' be a valid pointer before using it.
Hello, Thanks for the patch but this fix was already submitted and applied: https://git.kernel.org/cgit/linux/kernel/git/jic23/iio.git/commit/?h=testing&id=6826fdbd2e207f8107e65c5a372ac616e7af11b4 Eva > > Fixes: a98461d79ba5 ("staging: iio: ad9832: add DVDD regulator") > Fixes: 43a07e48af44 ("staging: iio: ad9832: clean-up regulator 'reg'") > > Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr> > --- > Compile tested only > --- > drivers/staging/iio/frequency/ad9832.c | 19 +++++++++---------- > 1 file changed, 9 insertions(+), 10 deletions(-) > > diff --git a/drivers/staging/iio/frequency/ad9832.c > b/drivers/staging/iio/frequency/ad9832.c > index 639047fade30..16894836f982 100644 > --- a/drivers/staging/iio/frequency/ad9832.c > +++ b/drivers/staging/iio/frequency/ad9832.c > @@ -211,6 +211,15 @@ static int ad9832_probe(struct spi_device *spi) > return -ENODEV; > } > > + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); > + if (!indio_dev) > + return -ENOMEM; > + > + spi_set_drvdata(spi, indio_dev); > + st = iio_priv(indio_dev); > + st->mclk = pdata->mclk; > + st->spi = spi; > + > st->avdd = devm_regulator_get(&spi->dev, "avdd"); > if (IS_ERR(st->avdd)) > return PTR_ERR(st->avdd); > @@ -233,16 +242,6 @@ static int ad9832_probe(struct spi_device *spi) > goto error_disable_avdd; > } > > - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); > - if (!indio_dev) { > - ret = -ENOMEM; > - goto error_disable_dvdd; > - } > - spi_set_drvdata(spi, indio_dev); > - st = iio_priv(indio_dev); > - st->mclk = pdata->mclk; > - st->spi = spi; > - > indio_dev->dev.parent = &spi->dev; > indio_dev->name = spi_get_device_id(spi)->name; > indio_dev->info = &ad9832_info; > -- > 2.9.3 >