From: liuyacan liuyacan@corp.netease.com
[ Upstream commit b3b1a17538d3ef6a9667b2271216fd16d7678ab5 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 45a24d24210f..540b32d86d9b 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -2136,6 +2136,7 @@ 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; }