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Diffstat (limited to 'drivers/staging/comedi/drivers.c')
| -rw-r--r-- | drivers/staging/comedi/drivers.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 9a8c5fc8e8fe..02a01baf5cc6 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -352,6 +352,13 @@ void comedi_inc_scan_progress(struct comedi_subdevice *s, async->scan_progress += num_bytes; if (async->scan_progress >= scan_length) { + unsigned int nscans = async->scan_progress / scan_length; + + if (async->scans_done < (UINT_MAX - nscans)) + async->scans_done += nscans; + else + async->scans_done = UINT_MAX; + async->scan_progress %= scan_length; async->events |= COMEDI_CB_EOS; } |