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authorHans Wippel <hwippel@linux.vnet.ibm.com>2017-09-21 10:16:26 +0300
committerDavid S. Miller <davem@davemloft.net>2017-09-22 01:31:02 +0300
commit09579ac803a3638344b8544b5940793d5358673e (patch)
tree8b782521ae6440bd1b42d8738a3addaf834c58ac /net/smc/smc_ib.c
parentf0ef1f4f2b772c0a1c8b35a6ae3edf974cc110dd (diff)
downloadlinux-09579ac803a3638344b8544b5940793d5358673e.tar.xz
net/smc: add missing dev_put
In the infiniband part, SMC currently uses get_netdev which calls dev_hold on the returned net device. However, the SMC code never calls dev_put on that net device resulting in a wrong reference count. This patch adds a dev_put after the usage of the net device to fix the issue. Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.c')
-rw-r--r--net/smc/smc_ib.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index 547e0e113b17..0b5852299158 100644
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -380,6 +380,7 @@ static int smc_ib_fill_gid_and_mac(struct smc_ib_device *smcibdev, u8 ibport)
ndev = smcibdev->ibdev->get_netdev(smcibdev->ibdev, ibport);
if (ndev) {
memcpy(&smcibdev->mac, ndev->dev_addr, ETH_ALEN);
+ dev_put(ndev);
} else if (!rc) {
memcpy(&smcibdev->mac[ibport - 1][0],
&smcibdev->gid[ibport - 1].raw[8], 3);