batman-adv: prevent potential hlist double deletion
authorMarek Lindner <mareklindner@neomailbox.ch>
Sun, 21 Jun 2015 16:30:23 +0000 (00:30 +0800)
committerAntonio Quartulli <antonio@meshcoding.com>
Mon, 24 Aug 2015 22:12:21 +0000 (00:12 +0200)
commita121048a89f8186fa2c8388d5b41528466013857
treef26005872c6fb6ab97f6f482de9e2b8e749aca7f
parentd0fa4f3f5b0419a016ff27eea2fa615e4c0d1713
batman-adv: prevent potential hlist double deletion

The hlist_del_rcu() call in batadv_tt_global_size_mod() does not check
if the element still is part of the list prior to deletion. The atomic
list counter should prevent the worst but converting to
hlist_del_init_rcu() ensures the element can't be deleted more than
once.

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
net/batman-adv/translation-table.c