diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 1b1f5b8f4e0f8653091497f2b393a5032a441fd6..27e265ba1afed9268d684db4edc4684e4e357922 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1547,7 +1547,7 @@ void setup_sysctl_set(struct ctl_table_set *set,
 	struct ctl_table_root *root,
 	int (*is_seen)(struct ctl_table_set *))
 {
-	memset(set, sizeof(*set), 0);
+	memset(set, 0, sizeof(*set));
 	set->is_seen = is_seen;
 	init_header(&set->dir.header, root, set, NULL, root_table);
 }