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RDMA/core: Fix double put of resource 

Do not decrease the reference count of resource tracker object twice in
the error flow of res_get_common_doit.

Fixes: c5dfe0ea6f ("RDMA/nldev: Add resource tracker doit callback")
Link: https://lore.kernel.org/r/20200507062942.98305-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Maor Gottlieb 2020-05-07 09:29:42 +03:00 committed by Jason Gunthorpe
parent 1901b91f99
commit 50bbe3d34f
1 changed files with 1 additions and 2 deletions
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3
drivers/infiniband/core/nldev.c
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@ -1292,11 +1292,10 @@ static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
has_cap_net_admin = netlink_capable(skb, CAP_NET_ADMIN);
ret = fill_func(msg, has_cap_net_admin, res, port);
rdma_restrack_put(res);
if (ret)
goto err_free;
rdma_restrack_put(res);
nlmsg_end(msg, nlh);
ib_device_put(device);
return rdma_nl_unicast(sock_net(skb->sk), msg, NETLINK_CB(skb).portid);