diff options
Diffstat (limited to 'drivers/staging/comedi/comedi_buf.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_buf.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index 220816857128..ac498e0b4865 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -323,8 +323,10 @@ static unsigned int comedi_buf_munge(struct comedi_async *async, return count; } -unsigned int comedi_buf_write_n_allocated(struct comedi_async *async) +unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s) { + struct comedi_async *async = s->async; + return async->buf_write_alloc_count - async->buf_write_count; } @@ -333,7 +335,7 @@ unsigned int comedi_buf_write_free(struct comedi_subdevice *s, unsigned int nbytes) { struct comedi_async *async = s->async; - unsigned int allocated = comedi_buf_write_n_allocated(async); + unsigned int allocated = comedi_buf_write_n_allocated(s); if (nbytes > allocated) nbytes = allocated; |