[PATCH v1 4/5] mm/memory_hotplug: onlining pages can only fail due to notifiers

[David Hildenbrand]

Onlining pages can only fail if a notifier reported a problem (e.g. -ENOMEM).
online_pages_range() can never fail.

Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
 mm/memory_hotplug.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 3dc6d2a309c2..bbbd16f9d877 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -933,13 +933,8 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
 		setup_zone_pageset(zone);
 	}
 
-	ret = walk_system_ram_range(pfn, nr_pages, &onlined_pages,
-		online_pages_range);
-	if (ret) {
-		if (need_zonelists_rebuild)
-			zone_pcp_reset(zone);
-		goto failed_addition;
-	}
+	walk_system_ram_range(pfn, nr_pages, &onlined_pages,
+			      online_pages_range);
 
 	zone->present_pages += onlined_pages;
 
-- 
2.17.1