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iio: potentiometer: ds1803: Remove VLA usage 

In preparation to enabling -Wvla, remove VLA usage and replace it
with fixed a fixed length array and therefore, prevent potential
stack overflow attacks.

Fixed as a part of the discussion to remove all VLAs from the kernel:
https://lkml.org/lkml/2018/3/7/621

Cc: keescook@chromium.org
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Himanshu Jha 2018-03-09 00:15:33 +05:30 committed by Jonathan Cameron
parent 2ab5b72453
commit a937729c93
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/potentiometer/ds1803.c
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@ -64,7 +64,7 @@ static int ds1803_read_raw(struct iio_dev *indio_dev,
struct ds1803_data *data = iio_priv(indio_dev); struct ds1803_data *data = iio_priv(indio_dev);
int pot = chan->channel; int pot = chan->channel;
int ret; int ret;
u8 result[indio_dev->num_channels]; u8 result[ARRAY_SIZE(ds1803_channels)];
switch (mask) { switch (mask) {
case IIO_CHAN_INFO_RAW: case IIO_CHAN_INFO_RAW: