X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=mm%2Fmemory_hotplug.c;h=9e88f749aa512395daea45f2727545fa0f281533;hb=fb59e394c30caa7760142996d2f96ec12901e4d7;hp=457bde530cbedcf0dea2f35e219466de0acf204d;hpb=f46c5818b1570f58b1b7dc69e49060a6b9a1ac94;p=firefly-linux-kernel-4.4.55.git

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 457bde530cbe..9e88f749aa51 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1969,8 +1969,10 @@ void try_offline_node(int nid)
 		 * wait_table may be allocated from boot memory,
 		 * here only free if it's allocated by vmalloc.
 		 */
-		if (is_vmalloc_addr(zone->wait_table))
+		if (is_vmalloc_addr(zone->wait_table)) {
 			vfree(zone->wait_table);
+			zone->wait_table = NULL;
+		}
 	}
 }
 EXPORT_SYMBOL(try_offline_node);