diff options
| author | David Lechner <dlechner@baylibre.com> | 2025-07-01 16:37:49 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:35:55 +0200 |
| commit | 93b9a8ebe1dcab1d397c85fccf0937a36ac6cd30 (patch) | |
| tree | b0fee97d3c51e98f8374145a4596d9dadf958a4c | |
| parent | 0e3040b8f60a8f6422c5c95faa9e391c0b053b5a (diff) | |
iio: adc: ad_sigma_delta: don't overallocate scan buffer
[ Upstream commit 5a2f15c5a8e017d0951e6dc62aa7b5b634f56881 ]
Fix overallocating the size of the scan buffer by converting bits to
bytes. The size is meant to be in bytes, so scanbits needs to be
divided by 8.
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-1-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/iio/adc/ad_sigma_delta.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index 4c5f8d29a559..6b3ef7ef403e 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -489,7 +489,7 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev) return ret; } - samples_buf_size = ALIGN(slot * indio_dev->channels[0].scan_type.storagebits, 8); + samples_buf_size = ALIGN(slot * indio_dev->channels[0].scan_type.storagebits / 8, 8); samples_buf_size += sizeof(int64_t); samples_buf = devm_krealloc(&sigma_delta->spi->dev, sigma_delta->samples_buf, samples_buf_size, GFP_KERNEL); |