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| author | liuyacan <liuyacan@corp.netease.com> | 2022-05-25 16:54:08 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-25 21:58:41 -0700 |
| commit | b3b1a17538d3ef6a9667b2271216fd16d7678ab5 (patch) | |
| tree | 3a77a261d6251bd36e6ce9605ee9a2050ce8fa7c /net | |
| parent | 215cd9897afbce9a964d4afbeec58c086d6cb170 (diff) | |
| download | linux-rpi-b3b1a17538d3ef6a9667b2271216fd16d7678ab5.tar.gz linux-rpi-b3b1a17538d3ef6a9667b2271216fd16d7678ab5.tar.bz2 linux-rpi-b3b1a17538d3ef6a9667b2271216fd16d7678ab5.zip | |
net/smc: set ini->smcrv2.ib_dev_v2 to NULL if SMC-Rv2 is unavailable
In the process of checking whether RDMAv2 is available, the current
implementation first sets ini->smcrv2.ib_dev_v2, and then allocates
smc buf desc and register rmb, but the latter may fail. In this case,
the pointer should be reset.
Fixes: e49300a6bf62 ("net/smc: add listen processing for SMC-Rv2")
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Reviewed-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/20220525085408.812273-1-liuyacan@corp.netease.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/smc/af_smc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index a201bf29af98..433bb5a7df31 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -2161,6 +2161,7 @@ static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc, not_found: ini->smcr_version &= ~SMC_V2; + ini->smcrv2.ib_dev_v2 = NULL; ini->check_smcrv2 = false; } |