[PATCH] powerpc/4xx: 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 functions platform_get_resource() and kmalloc()
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 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
index f366d2d..49e24f5 100644
--- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
+++ b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
@@ -130,7 +130,7 @@ static int hsta_msi_probe(struct platform_device *pdev)
 	int irq, ret, irq_count;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (IS_ERR(mem)) {
+	if (!mem) {
 		dev_err(dev, "Unable to get mmio space\n");
 		return -EINVAL;
 	}
@@ -155,7 +155,7 @@ static int hsta_msi_probe(struct platform_device *pdev)
 		goto out;
 
 	ppc4xx_hsta_msi.irq_map = kmalloc(sizeof(int) * irq_count, GFP_KERNEL);
-	if (IS_ERR(ppc4xx_hsta_msi.irq_map)) {
+	if (!ppc4xx_hsta_msi.irq_map) {
 		ret = -ENOMEM;
 		goto out1;
 	}