linux-kernel - [PATCH 3/4] staging: comedi: addi_apci_1564: remove null check of devpriv in apci1564

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Message-Id: <ac33ad4ded5ce641af0fabd22d5029c3d08ef4a1.1405050794.git.chase.southwood@gmail.com>
Date:	Thu, 10 Jul 2014 23:02:27 -0500
From:	Chase Southwood <chase.southwood@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	abbotti@....co.uk, hsweeten@...ionengravers.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Chase Southwood <chase.southwood@...il.com>
Subject: [PATCH 3/4] staging: comedi: addi_apci_1564: remove null check of devpriv in apci1564_detach()

There is no need to test whether devpriv is null in this function.  The
check looks left over and we can just remove it.

Signed-off-by: Chase Southwood <chase.southwood@...il.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: H Hartley Sweeten <hsweeten@...ionengravers.com>
---
 drivers/staging/comedi/drivers/addi_apci_1564.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c
index e3dcab7..f91aedd 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1564.c
@@ -433,14 +433,10 @@ static int apci1564_auto_attach(struct comedi_device *dev,
 
 static void apci1564_detach(struct comedi_device *dev)
 {
-	struct apci1564_private *devpriv = dev->private;
-
-	if (devpriv) {
-		if (dev->iobase)
-			apci1564_reset(dev);
-		if (dev->irq)
-			free_irq(dev->irq, dev);
-	}
+	if (dev->iobase)
+		apci1564_reset(dev);
+	if (dev->irq)
+		free_irq(dev->irq, dev);
 	comedi_pci_disable(dev);
 }
 
-- 
2.0.1

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