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authorAlex Chiang <achiang@hp.com>2009-12-14 17:59:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 08:53:17 -0800
commitb9d52dad9447d0db4b52d67d5e9e9d339b5e8302 (patch)
treea3b58ae9c722e21567429b71dfc9b7abeee409c6 /drivers/base/node.c
parentf8246f3159dfdf97b8b40f9e03e715bafedd22fc (diff)
downloadop-kernel-dev-b9d52dad9447d0db4b52d67d5e9e9d339b5e8302.zip
op-kernel-dev-b9d52dad9447d0db4b52d67d5e9e9d339b5e8302.tar.gz
mm: refactor unregister_cpu_under_node()
By returning early if the node is not online, we can unindent the interesting code by two levels. 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>
Diffstat (limited to 'drivers/base/node.c')
-rw-r--r--drivers/base/node.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c
index eeae035..9b9acc3 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -287,12 +287,18 @@ int register_cpu_under_node(unsigned int cpu, unsigned int nid)
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
{
- if (node_online(nid)) {
- struct sys_device *obj = get_cpu_sysdev(cpu);
- if (obj)
- sysfs_remove_link(&node_devices[nid].sysdev.kobj,
- kobject_name(&obj->kobj));
- }
+ struct sys_device *obj;
+
+ if (!node_online(nid))
+ return 0;
+
+ obj = get_cpu_sysdev(cpu);
+ if (!obj)
+ return 0;
+
+ sysfs_remove_link(&node_devices[nid].sysdev.kobj,
+ kobject_name(&obj->kobj));
+
return 0;
}
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