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Diffstat (limited to 'net/smc/smc_cdc.c')
-rw-r--r--net/smc/smc_cdc.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index 619b3bab3824..32d6d03df321 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -470,9 +470,9 @@ static void smc_cdc_rx_handler(struct ib_wc *wc, void *buf)
{
struct smc_link *link = (struct smc_link *)wc->qp->qp_context;
struct smc_cdc_msg *cdc = buf;
+ struct smc_sock *smc = NULL;
struct smc_connection *conn;
struct smc_link_group *lgr;
- struct smc_sock *smc;
if (wc->byte_len < offsetof(struct smc_cdc_msg, reserved))
return; /* short message */
@@ -483,21 +483,26 @@ static void smc_cdc_rx_handler(struct ib_wc *wc, void *buf)
lgr = smc_get_lgr(link);
read_lock_bh(&lgr->conns_lock);
conn = smc_lgr_find_conn(ntohl(cdc->token), lgr);
- read_unlock_bh(&lgr->conns_lock);
- if (!conn || conn->out_of_sync)
+ if (!conn || conn->out_of_sync) {
+ read_unlock_bh(&lgr->conns_lock);
return;
+ }
smc = container_of(conn, struct smc_sock, conn);
+ sock_hold(&smc->sk);
+ read_unlock_bh(&lgr->conns_lock);
if (cdc->prod_flags.failover_validation) {
smc_cdc_msg_validate(smc, cdc, link);
- return;
+ goto out;
}
if (smc_cdc_before(ntohs(cdc->seqno),
conn->local_rx_ctrl.seqno))
/* received seqno is old */
- return;
+ goto out;
smc_cdc_msg_recv(smc, cdc);
+out:
+ sock_put(&smc->sk);
}
static struct smc_wr_rx_handler smc_cdc_rx_handlers[] = {