iio:buffer: make length types match kfifo types

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Currently, we use int for buffer length and bytes_per_datum. However,
kfifo uses unsigned int for length and size_t for element size. We need
to make sure these matches or we will have bugs related to overflow (in
the range between INT_MAX and UINT_MAX for length, for example).

In addition, set_bytes_per_datum uses size_t while bytes_per_datum is an
int, which would cause bugs for large values of bytes_per_datum.

Change buffer length to use unsigned int and bytes_per_datum to use
size_t.

Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Martin Kelly 2018-03-26 14:27:51 -07:00 • committed by Jonathan Cameron

parent d58109dcf3

commit c043ec1ca5

3 changed files with 6 additions and 6 deletions

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6

include/linux/iio/buffer_impl.h

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