tree e35017bde6da3e9b2a33b1f3ffcb3b557e177272
parent 8c69c09f5ede7b40f0d5bc1c12d4880bdc30d9d9
author Sven Eckelmann <sven@narfation.org> 1584397852 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1584691673 +0100

batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq

commit 5ba7dcfe77037b67016263ea597a8b431692ecab upstream.

The originator node object orig_neigh_node is used to when accessing the
bcast_own(_sum) and real_packet_count information. The access to them has
to be protected with the spinlock in orig_neigh_node.

But the function uses the lock in orig_node instead. This is incorrect
because they could be two different originator node objects.

Fixes: 0ede9f41b217 ("batman-adv: protect bit operations to count OGMs with spinlock")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>