diff options
| author | Ursula Braun <ubraun@linux.ibm.com> | 2019-10-09 10:07:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-31 16:43:53 +0100 |
| commit | 2674c57c3bba13dc3a9ec1da9fa3e3bfe9f0435b (patch) | |
| tree | 07c28c352dbb99160e140be4a457261d1849413b /net/smc | |
| parent | 68b4c10813b4b1cfff2e2c80a79a187a97548d3f (diff) | |
net/smc: increase device refcount for added link group
[ Upstream commit b3cb53c05f20c5b4026a36a7bbd3010d1f3e0a55 ]
SMCD link groups belong to certain ISM-devices and SMCR link group
links belong to certain IB-devices. Increase the refcount for
these devices, as long as corresponding link groups exist.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/smc_core.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 2ba97ff325a5..0c5fcb8ed404 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -231,10 +231,12 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini) lgr->conns_all = RB_ROOT; if (ini->is_smcd) { /* SMC-D specific settings */ + get_device(&ini->ism_dev->dev); lgr->peer_gid = ini->ism_gid; lgr->smcd = ini->ism_dev; } else { /* SMC-R specific settings */ + get_device(&ini->ib_dev->ibdev->dev); lgr->role = smc->listen_smc ? SMC_SERV : SMC_CLNT; memcpy(lgr->peer_systemid, ini->ib_lcl->id_for_peer, SMC_SYSTEMID_LEN); @@ -433,10 +435,13 @@ static void smc_lgr_free_bufs(struct smc_link_group *lgr) static void smc_lgr_free(struct smc_link_group *lgr) { smc_lgr_free_bufs(lgr); - if (lgr->is_smcd) + if (lgr->is_smcd) { smc_ism_put_vlan(lgr->smcd, lgr->vlan_id); - else + put_device(&lgr->smcd->dev); + } else { smc_link_clear(&lgr->lnk[SMC_SINGLE_LINK]); + put_device(&lgr->lnk[SMC_SINGLE_LINK].smcibdev->ibdev->dev); + } kfree(lgr); } |