static inline int __iio_allocate_kfifo(struct iio_kfifo *buf,
int bytes_per_datum, int length)
{
if ((length == 0) || (bytes_per_datum == 0))
return -EINVAL;
__iio_update_buffer(&buf->buffer, bytes_per_datum, length);
return kfifo_alloc(&buf->kf, bytes_per_datum*length, GFP_KERNEL);
}
static inline int __iio_allocate_sw_ring_buffer(struct iio_sw_ring_buffer *ring,
int bytes_per_datum, int length)
{
if ((length == 0) || (bytes_per_datum == 0))
return -EINVAL;
__iio_update_buffer(&ring->buf, bytes_per_datum, length);
ring->data = kmalloc(length*ring->buf.bytes_per_datum, GFP_ATOMIC);
ring->read_p = NULL;
ring->write_p = NULL;
ring->half_p = NULL;
return ring->data ? 0 : -ENOMEM;
}