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| author | Sven Eckelmann <sven.eckelmann@openmesh.com> | 2018-02-19 14:08:52 +0100 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2018-02-25 20:10:30 +0100 |
| commit | 10d570284258a30dc104c50787c5289ec49f3d23 (patch) | |
| tree | 49f01734d7216d9aae73df795bf483e445261a76 /net | |
| parent | 3bf2a09da956b43ecfaa630a2ef9a477f991a46a (diff) | |
| download | linux-stable-10d570284258a30dc104c50787c5289ec49f3d23.tar.gz linux-stable-10d570284258a30dc104c50787c5289ec49f3d23.tar.bz2 linux-stable-10d570284258a30dc104c50787c5289ec49f3d23.zip | |
batman-adv: Ignore invalid batadv_iv_gw during netlink send
The function batadv_iv_gw_dump stops the processing loop when
batadv_iv_gw_dump_entry returns a non-0 return code. This should only
happen when the buffer is full. Otherwise, an empty message may be
returned by batadv_gw_dump. This empty message will then stop the netlink
dumping of gateway entries. At worst, not a single entry is returned to
userspace even when plenty of possible gateways exist.
Fixes: efb766af06e3 ("batman-adv: add B.A.T.M.A.N. IV bat_gw_dump implementations")
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/batman-adv/bat_iv_ogm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index 79e326383726..8f64439647e3 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -2729,7 +2729,7 @@ static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, struct batadv_neigh_ifinfo *router_ifinfo = NULL; struct batadv_neigh_node *router; struct batadv_gw_node *curr_gw; - int ret = -EINVAL; + int ret = 0; void *hdr; router = batadv_orig_router_get(gw_node->orig_node, BATADV_IF_DEFAULT); |