diff options
| author | Martin Kelly <mkelly@xevo.com> | 2018-03-27 00:27:51 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-03-30 13:14:32 +0300 |
| commit | c043ec1ca5baae63726aae32abbe003192bc6eec (patch) | |
| tree | 51574cd7d82dec8175c75f9f4498fd38fa8bb68d /drivers/iio/buffer/industrialio-buffer-dma.c | |
| parent | d58109dcf37fc9baec354385ec9fdcd8878d174d (diff) | |
| download | linux-c043ec1ca5baae63726aae32abbe003192bc6eec.tar.xz | |
iio:buffer: make length types match kfifo types
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>
Diffstat (limited to 'drivers/iio/buffer/industrialio-buffer-dma.c')
| -rw-r--r-- | drivers/iio/buffer/industrialio-buffer-dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c index 05e0c353e089..b32bf57910ca 100644 --- a/drivers/iio/buffer/industrialio-buffer-dma.c +++ b/drivers/iio/buffer/industrialio-buffer-dma.c @@ -587,7 +587,7 @@ EXPORT_SYMBOL_GPL(iio_dma_buffer_set_bytes_per_datum); * Should be used as the set_length callback for iio_buffer_access_ops * struct for DMA buffers. */ -int iio_dma_buffer_set_length(struct iio_buffer *buffer, int length) +int iio_dma_buffer_set_length(struct iio_buffer *buffer, unsigned int length) { /* Avoid an invalid state */ if (length < 2) |