diff options
Diffstat (limited to 'drivers/staging/comedi/comedi_buf.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_buf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index f693c2c0bec3..d2c8cc72a99d 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -211,6 +211,8 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s, { struct comedi_async *async = s->async; + lockdep_assert_held(&dev->mutex); + /* Round up new_size to multiple of PAGE_SIZE */ new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK; |