[PATCH net-next v2] netlink: don't forget to release a rhashtable_iter structure

[Andrei Vagin]

This bug was detected by kmemleak:
unreferenced object 0xffff8804269cc3c0 (size 64):
  comm "criu", pid 1042, jiffies 4294907360 (age 13.713s)
  hex dump (first 32 bytes):
    a0 32 cc 2c 04 88 ff ff 00 00 00 00 00 00 00 00  .2.,............
    00 01 00 00 00 00 ad de 00 02 00 00 00 00 ad de  ................
  backtrace:
    [<ffffffff8184dffa>] kmemleak_alloc+0x4a/0xa0
    [<ffffffff8124720f>] kmem_cache_alloc_trace+0x10f/0x280
    [<ffffffffa02864cc>] __netlink_diag_dump+0x26c/0x290 [netlink_diag]

v2: don't remove a reference on a rhashtable_iter structure to
    release it from netlink_diag_dump_done

Cc: Herbert Xu <herb...@gondor.apana.org.au>
Fixes: ad202074320c ("netlink: Use rhashtable walk interface in diag dump")
Signed-off-by: Andrei Vagin <ava...@openvz.org>
---
 net/netlink/diag.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/netlink/diag.c b/net/netlink/diag.c
index 3e3e253..b2f0e98 100644
--- a/net/netlink/diag.c
+++ b/net/netlink/diag.c
@@ -127,7 +127,6 @@ stop:
                goto done;
 
        rhashtable_walk_exit(hti);
-       cb->args[2] = 0;
        num++;
 
 mc_list:
-- 
2.5.5