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authorSven Eckelmann <sven.eckelmann@openmesh.com>2018-02-19 16:08:52 +0300
committerSimon Wunderlich <sw@simonwunderlich.de>2018-02-25 22:10:30 +0300
commit10d570284258a30dc104c50787c5289ec49f3d23 (patch)
tree49f01734d7216d9aae73df795bf483e445261a76 /net/batman-adv
parent3bf2a09da956b43ecfaa630a2ef9a477f991a46a (diff)
downloadlinux-10d570284258a30dc104c50787c5289ec49f3d23.tar.xz
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/batman-adv')
-rw-r--r--net/batman-adv/bat_iv_ogm.c2
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);