From b3b1a17538d3ef6a9667b2271216fd16d7678ab5 Mon Sep 17 00:00:00 2001 From: liuyacan Date: Wed, 25 May 2022 16:54:08 +0800 Subject: 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 Reviewed-by: Karsten Graul Link: https://lore.kernel.org/r/20220525085408.812273-1-liuyacan@corp.netease.com Signed-off-by: Jakub Kicinski --- net/smc/af_smc.c | 1 + 1 file changed, 1 insertion(+) 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; } -- cgit v1.2.3