sysctl: Error on bad sysctl tables

[linux-2.6-omap-h63xx.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c7150af631b59c3a64407924f34790d566825387..62e53a0de4a3055843b545749d6e0cc570fde0f4 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1461,7 +1461,9 @@ static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table)
 
 static __init int sysctl_init(void)
 {
+       int err;
        sysctl_set_parent(NULL, root_table);
+       err = sysctl_check_table(root_table);
        return 0;
 }
 
@@ -1546,6 +1548,10 @@ struct ctl_table_header *register_sysctl_table(struct ctl_table * table)
        tmp->used = 0;
        tmp->unregistering = NULL;
        sysctl_set_parent(NULL, table);
+       if (sysctl_check_table(tmp->ctl_table)) {
+               kfree(tmp);
+               return NULL;
+       }
        spin_lock(&sysctl_lock);
        list_add_tail(&tmp->ctl_entry, &root_table_header.ctl_entry);
        spin_unlock(&sysctl_lock);