powerpc: Use PTR_RET instead of IS_ERR/PTR_ERR

Signed-off-by: NAdrian-Leonard Radu <ady8radu@gmail.com>
Acked-by: NGeoff Levand <geoff@infradead.org>
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>

arch/powerpc/kernel/iommu.c

@@ -102,7 +102,7 @@ static int __init fail_iommu_debugfs(void)
 	struct dentry *dir = fault_create_debugfs_attr("fail_iommu",
 						       NULL, &fail_iommu);
 
-	return IS_ERR(dir) ? PTR_ERR(dir) : 0;
+	return PTR_RET(dir);
 }
 late_initcall(fail_iommu_debugfs);
 

arch/powerpc/kernel/time.c

@@ -1049,10 +1049,8 @@ static int __init rtc_init(void)
 		return -ENODEV;
 
 	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
 
-	return 0;
+	return PTR_RET(pdev);
 }
 
 module_init(rtc_init);

arch/powerpc/platforms/ps3/time.c

@@ -89,10 +89,8 @@ static int __init ps3_rtc_init(void)
 		return -ENODEV;
 
 	pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
 
-	return 0;
+	return PTR_RET(pdev);
 }
 
 module_init(ps3_rtc_init);

arch/powerpc/sysdev/rtc_cmos_setup.c

@@ -62,10 +62,7 @@ static int  __init add_rtc(void)
 	pd = platform_device_register_simple("rtc_cmos", -1,
 					     &res[0], num_res);
 
-	if (IS_ERR(pd))
-		return PTR_ERR(pd);
-
-	return 0;
+	return PTR_RET(pd);
 }
 fs_initcall(add_rtc);