diff options
Diffstat (limited to 'drivers/staging/iio/ring_sw.c')
| -rw-r--r-- | drivers/staging/iio/ring_sw.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c index b71ce3900649..ea0015eee13e 100644 --- a/drivers/staging/iio/ring_sw.c +++ b/drivers/staging/iio/ring_sw.c @@ -152,8 +152,8 @@ error_ret: return ret; } -int iio_rip_sw_rb(struct iio_ring_buffer *r, - size_t count, char __user *buf, int *dead_offset) +int iio_read_first_n_sw_rb(struct iio_ring_buffer *r, + size_t n, char __user *buf, int *dead_offset) { struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r); @@ -166,15 +166,16 @@ int iio_rip_sw_rb(struct iio_ring_buffer *r, * read something that is not a whole number of bpds. * Return an error. */ - if (count % ring->buf.bytes_per_datum) { + if (n % ring->buf.bytes_per_datum) { ret = -EINVAL; printk(KERN_INFO "Ring buffer read request not whole number of" "samples: Request bytes %zd, Current bytes per datum %d\n", - count, ring->buf.bytes_per_datum); + n, ring->buf.bytes_per_datum); goto error_ret; } /* Limit size to whole of ring buffer */ - bytes_to_rip = min((size_t)(ring->buf.bytes_per_datum*ring->buf.length), count); + bytes_to_rip = min((size_t)(ring->buf.bytes_per_datum*ring->buf.length), + n); data = kmalloc(bytes_to_rip, GFP_KERNEL); if (data == NULL) { @@ -278,7 +279,7 @@ error_ret: return ret; } -EXPORT_SYMBOL(iio_rip_sw_rb); +EXPORT_SYMBOL(iio_read_first_n_sw_rb); int iio_store_to_sw_rb(struct iio_ring_buffer *r, u8 *data, s64 timestamp) { |