mm: refactor register_cpu_under_node()
By returning early if the node is not online, we can unindent the
interesting code by one level.
No functional change.
Signed-off-by: Alex Chiang <achiang@hp.com>
Cc: Gary Hade <garyhade@us.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg KH <greg@kroah.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 44eed11..eeae035 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -271,16 +271,18 @@
*/
int register_cpu_under_node(unsigned int cpu, unsigned int nid)
{
- if (node_online(nid)) {
- struct sys_device *obj = get_cpu_sysdev(cpu);
- if (!obj)
- return 0;
- return sysfs_create_link(&node_devices[nid].sysdev.kobj,
- &obj->kobj,
- kobject_name(&obj->kobj));
- }
+ struct sys_device *obj;
- return 0;
+ if (!node_online(nid))
+ return 0;
+
+ obj = get_cpu_sysdev(cpu);
+ if (!obj)
+ return 0;
+
+ return sysfs_create_link(&node_devices[nid].sysdev.kobj,
+ &obj->kobj,
+ kobject_name(&obj->kobj));
}
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)