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Subject[PATCH v4 5/8] iio: core: Use new helpers from overflow.h in iio_device_alloc()
Date
We have two new helpers struct_size_with_data() and struct_data_pointer()
that we can utilize in iio_device_alloc(). Do it so.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
---
drivers/iio/industrialio-core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 1986b3386307..223013725e32 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1644,7 +1644,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
size_t alloc_size;

if (sizeof_priv)
- alloc_size = ALIGN(alloc_size, IIO_DMA_MINALIGN) + sizeof_priv;
+ alloc_size = struct_size_with_data(iio_dev_opaque, IIO_DMA_MINALIGN, sizeof_priv);
else
alloc_size = sizeof(struct iio_dev_opaque);

@@ -1655,8 +1655,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
indio_dev = &iio_dev_opaque->indio_dev;

if (sizeof_priv)
- indio_dev->priv = (char *)iio_dev_opaque +
- ALIGN(sizeof(struct iio_dev_opaque), IIO_DMA_MINALIGN);
+ indio_dev->priv = struct_data_pointer(iio_dev_opaque, IIO_DMA_MINALIGN);
else
indio_dev->priv = NULL;

--
2.43.0.rc1.1.gbec44491f096

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