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net/smc: adjust net_device refcount 

smc_pnet_fill_entry() uses dev_get_by_name() adding a refcount to ndev.
The following smc_pnet_enter() has to reduce the refcount if the entry
to be added exists already in the pnet table.

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun 2017-09-21 09:16:29 +02:00 committed by David S. Miller
parent 731b008560
commit a6832c3acd
1 changed files with 3 additions and 1 deletions
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4
net/smc/smc_pnet.c
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@ -181,8 +181,10 @@ static int smc_pnet_enter(struct smc_pnetentry *new_pnetelem)
sizeof(new_pnetelem->ndev->name)) || sizeof(new_pnetelem->ndev->name)) ||
smc_pnet_same_ibname(pnetelem, smc_pnet_same_ibname(pnetelem,
new_pnetelem->smcibdev->ibdev->name, new_pnetelem->smcibdev->ibdev->name,
new_pnetelem->ib_port)) new_pnetelem->ib_port)) {
dev_put(pnetelem->ndev);
goto found; goto found;
}
} }
list_add_tail(&new_pnetelem->list, &smc_pnettable.pnetlist); list_add_tail(&new_pnetelem->list, &smc_pnettable.pnetlist);
rc = 0; rc = 0;