[PATCH -next] powerpc: Fix return value check in hsta_msi_probe()

[weiyj_lk at 163.com]

From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>

In case of error, the function ioremap() returns NULL
not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.


Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
---
 arch/powerpc/sysdev/ppc4xx_hsta_msi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
index 11c8884..14c25c5 100644
--- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
+++ b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
@@ -150,7 +150,7 @@ static int hsta_msi_probe(struct platform_device *pdev)
 	ppc4xx_hsta_msi.address = mem->start;
 	ppc4xx_hsta_msi.data = ioremap(mem->start, resource_size(mem));
 	ppc4xx_hsta_msi.irq_count = irq_count;
-	if (IS_ERR(ppc4xx_hsta_msi.data)) {
+	if (!ppc4xx_hsta_msi.data) {
 		dev_err(dev, "Unable to map memory\n");
 		return -ENOMEM;
 	}