linux-kernel - [PATCH -next] spi: fix return value check in ce4100_spi

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Date:	Fri, 22 Feb 2013 10:52:35 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	eric.y.miao@...il.com, linux@....linux.org.uk,
	haojian.zhuang@...il.com, grant.likely@...retlab.ca,
	broonie@...nsource.wolfsonmicro.com
Cc:	yongjun_wei@...ndmicro.com.cn,
	linux-arm-kernel@...ts.infradead.org,
	spi-devel-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] spi: fix return value check in ce4100_spi_probe()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

In case of error, the function platform_device_register_full()
returns ERR_PTR() and never returns NULL. The NULL test in the
return value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/spi/spi-pxa2xx-pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
index 364964d..0a11dcfc 100644
--- a/drivers/spi/spi-pxa2xx-pci.c
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -47,8 +47,8 @@ static int ce4100_spi_probe(struct pci_dev *dev,
 	pi.size_data = sizeof(spi_pdata);
 
 	pdev = platform_device_register_full(&pi);
-	if (!pdev)
-		return -ENOMEM;
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
 
 	pci_set_drvdata(dev, pdev);
 

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