From: David Schleef <ds@schleef.org>
Date: Tue, 18 Sep 2001 20:54:39 +0000 (+0000)
Subject: Fixed a segfault in nidio_detach() when configure fails because it can't
X-Git-Tag: r0_7_61~78
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=c4199dfb4d72c224549936158f196adeb0013c7d;p=comedi.git

Fixed a segfault in nidio_detach() when configure fails because it can't
find board
---

diff --git a/comedi/drivers/ni_pcidio.c b/comedi/drivers/ni_pcidio.c
index bb6620c2..603d970c 100644
--- a/comedi/drivers/ni_pcidio.c
+++ b/comedi/drivers/ni_pcidio.c
@@ -499,7 +499,7 @@ static int nidio_detach(comedi_device *dev)
 {
 	int i;
 
-	if(!this_board->is_diodaq){
+	if(this_board && !this_board->is_diodaq){
 		for(i=0;i<this_board->n_8255;i++){
 			subdev_8255_cleanup(dev,dev->subdevices+i);
 		}