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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2017-09-21 09:16:29 +0200
committerDavid S. Miller <davem@davemloft.net>2017-09-21 15:31:02 -0700
commita6832c3acdb2ceb099ec3c385777fbaa6d5a5fd6 (patch)
treec30c272d454dcb8d010d661aa93462e3afd8b039 /net
parent731b008560e6dfaf5fb297543f17bbe9bb868f3c (diff)
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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>
Diffstat (limited to 'net')
-rw-r--r--net/smc/smc_pnet.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c
index 78f7af28ae4f..31f8453c25c5 100644
--- a/net/smc/smc_pnet.c
+++ b/net/smc/smc_pnet.c
@@ -181,8 +181,10 @@ static int smc_pnet_enter(struct smc_pnetentry *new_pnetelem)
sizeof(new_pnetelem->ndev->name)) ||
smc_pnet_same_ibname(pnetelem,
new_pnetelem->smcibdev->ibdev->name,
- new_pnetelem->ib_port))
+ new_pnetelem->ib_port)) {
+ dev_put(pnetelem->ndev);
goto found;
+ }
}
list_add_tail(&new_pnetelem->list, &smc_pnettable.pnetlist);
rc = 0;