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authorWen Gu <guwen@linux.alibaba.com>2022-01-13 11:36:41 +0300
committerDavid S. Miller <davem@davemloft.net>2022-01-13 16:14:53 +0300
commitea89c6c0983c39702a4a52ccaa4702e0cb71179b (patch)
tree9e8c99b82d0eeaee64d464df07eacc135608cfcf /net/smc/smc_cdc.c
parent91341fa0003befd097e190ec2a4bf63ad957c49a (diff)
downloadlinux-ea89c6c0983c39702a4a52ccaa4702e0cb71179b.tar.xz
net/smc: Introduce a new conn->lgr validity check helper
It is no longer suitable to identify whether a smc connection is registered in a link group through checking if conn->lgr is NULL, because conn->lgr won't be reset even the connection is unregistered from a link group. So this patch introduces a new helper smc_conn_lgr_valid() and replaces all the check of conn->lgr in original implementation with the new helper to judge if conn->lgr is valid to use. Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_cdc.c')
-rw-r--r--net/smc/smc_cdc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index 84c8a4374fdd..9d5a97168969 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -197,7 +197,8 @@ int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)
{
int rc;
- if (!conn->lgr || (conn->lgr->is_smcd && conn->lgr->peer_shutdown))
+ if (!smc_conn_lgr_valid(conn) ||
+ (conn->lgr->is_smcd && conn->lgr->peer_shutdown))
return -EPIPE;
if (conn->lgr->is_smcd) {