From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 17 May 2010 11:26:07 +0000 (+0000)
Subject: For COMEDI_BUFINFO ioctl, if subdevice has no async capability, set
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=5e9f2e262e05fd8b1be3d72d63fd908d3ff48748;p=comedi.git

For COMEDI_BUFINFO ioctl, if subdevice has no async capability, set
bytes_read and bytes_written to 0 in returned structure.
---

diff --git a/comedi/comedi_fops.c b/comedi/comedi_fops.c
index a6386675..0e9bf33b 100644
--- a/comedi/comedi_fops.c
+++ b/comedi/comedi_fops.c
@@ -594,6 +594,8 @@ static int do_bufinfo_ioctl(comedi_device * dev, void *arg)
 		bi.buf_read_ptr = 0;
 		bi.buf_write_count = 0;
 		bi.buf_read_count = 0;
+		bi.bytes_read = 0;
+		bi.bytes_written = 0;
 		goto copyback;
 	}