linux-kernel - [PATCH 2/2] Staging: comedi: dyna

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Date:	Thu, 9 Jun 2011 17:30:30 +0530
From:	"Prashant P. Shah" <pshah.mumbai@...il.com>
To:	devel@...uxdriverproject.org
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	Frank Mori Hess <fmhess@...rs.sourceforge.net>,
	Ian Abbott <abbotti@....co.uk>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] Staging: comedi: dyna_pci10xx: check for NULL value

Check NULL value for devpriv during detach callback

Signed-off-by: Prashant P. Shah <pshah.mumbai@...il.com>
---
 drivers/staging/comedi/drivers/dyna_pci10xx.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
index 50abb6e..d8821b9 100644
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c
@@ -410,14 +410,12 @@ found:
 
 static int dyna_pci10xx_detach(struct comedi_device *dev)
 {
-	if (devpriv->pci_dev)
+	if (devpriv && devpriv->pci_dev)
 		comedi_pci_disable(devpriv->pci_dev);
 
 	return 0;
 }
 
-/* COMEDI_PCI_INITCLEANUP(dyna_pci10xx_driver, dyna_pci10xx_pci_table); */
-
 static int __devinit driver_dyna_pci10xx_pci_probe(struct pci_dev *dev,
 					      const struct pci_device_id *ent)
 {
-- 
1.7.1

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