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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2021-06-13 16:23:01 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2021-06-16 14:53:13 +0100
commit92babc9938ebbf4050f2fba774836f7edc16a570 (patch)
treed721bba4082e949dbbe9d2de226d6de31289ca63 /drivers/iio
parentec90b52c07c0403a6db60d752484ec08d605ead0 (diff)
iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
Add __aligned(8) to ensure the buffer passed to iio_push_to_buffers_with_timestamp() is suitable for the naturally aligned timestamp that will be inserted. Here an explicit structure is not used, because the holes would necessitate the addition of an explict memset(), to avoid a kernel data leak, making for a less minimal fix. Fixes: 1c28799257bc ("iio: light: isl29501: Add support for the ISL29501 ToF sensor.") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Mathieu Othacehe <m.othacehe@gmail.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210613152301.571002-9-jic23@kernel.org
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/proximity/isl29501.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/proximity/isl29501.c b/drivers/iio/proximity/isl29501.c
index 90e76451c972..5b6ea783795d 100644
--- a/drivers/iio/proximity/isl29501.c
+++ b/drivers/iio/proximity/isl29501.c
@@ -938,7 +938,7 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct isl29501_private *isl29501 = iio_priv(indio_dev);
const unsigned long *active_mask = indio_dev->active_scan_mask;
- u32 buffer[4] = {}; /* 1x16-bit + ts */
+ u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */
if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask))
isl29501_register_read(isl29501, REG_DISTANCE, buffer);