powerpc/4xx: Fix return value check in hsta_msi_probe()

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@trendmicro.com.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
index 87f9623..502f08c 100644 (file)
--- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
+++ b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
@@ -132,7 +132,7 @@ static int hsta_msi_probe(struct platform_device *pdev)
        struct pci_controller *phb;
 
        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;
        }
@@ -157,7 +157,7 @@ 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;
        }