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authorliuyacan <liuyacan@corp.netease.com>2022-05-25 16:54:08 +0800
committerJakub Kicinski <kuba@kernel.org>2022-05-25 21:58:41 -0700
commitb3b1a17538d3ef6a9667b2271216fd16d7678ab5 (patch)
tree3a77a261d6251bd36e6ce9605ee9a2050ce8fa7c /net/smc/af_smc.c
parent215cd9897afbce9a964d4afbeec58c086d6cb170 (diff)
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/smc/af_smc.c')
-rw-r--r--net/smc/af_smc.c1
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;
}