From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 7 Aug 2006 14:09:26 +0000 (+0000)
Subject: Check I/O region was allocated before releasing it.
X-Git-Tag: r0_7_72~25
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=0ea225d12b2299596a004bc6cf10b20295896942;p=comedi.git

Check I/O region was allocated before releasing it.
---

diff --git a/comedi/drivers/fl512.c b/comedi/drivers/fl512.c
index 5cca2689..a9555f4a 100644
--- a/comedi/drivers/fl512.c
+++ b/comedi/drivers/fl512.c
@@ -188,7 +188,7 @@ static int fl512_attach(comedi_device *dev,comedi_devconfig *it)
 
 static int fl512_detach(comedi_device *dev)
 {
-  release_region(dev->iobase,FL512_SIZE);
+  if (dev->iobase) release_region(dev->iobase,FL512_SIZE);
   printk("comedi%d: fl512: dummy i detach\n",dev->minor);
   return 0;
 }