summaryrefslogtreecommitdiff
path: root/drivers/scsi/qedf/qedf_io.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/qedf/qedf_io.c')
-rw-r--r--drivers/scsi/qedf/qedf_io.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
index 57c3aa4fb708..56d211674a9a 100644
--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -1799,6 +1799,7 @@ int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
goto out;
}
+ qedf = fcport->qedf;
rdata = fcport->rdata;
if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
@@ -1808,32 +1809,31 @@ int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
}
r_a_tov = rdata->r_a_tov;
- qedf = fcport->qedf;
lport = qedf->lport;
if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
rc = 1;
- goto out;
+ goto drop_rdata_kref;
}
if (atomic_read(&qedf->link_down_tmo_valid) > 0) {
QEDF_ERR(&(qedf->dbg_ctx), "link_down_tmo active.\n");
rc = 1;
- goto out;
+ goto drop_rdata_kref;
}
/* Ensure room on SQ */
if (!atomic_read(&fcport->free_sqes)) {
QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
rc = 1;
- goto out;
+ goto drop_rdata_kref;
}
if (test_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags)) {
QEDF_ERR(&qedf->dbg_ctx, "fcport is uploading.\n");
rc = 1;
- goto out;
+ goto drop_rdata_kref;
}
if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
@@ -1843,7 +1843,7 @@ int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
"cleanup or abort processing or already "
"completed.\n", io_req->xid);
rc = 1;
- goto out;
+ goto drop_rdata_kref;
}
kref_get(&io_req->refcount);
@@ -1876,6 +1876,8 @@ int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
spin_unlock_irqrestore(&fcport->rport_lock, flags);
+drop_rdata_kref:
+ kref_put(&rdata->kref, fc_rport_destroy);
out:
return rc;
}
@@ -2217,6 +2219,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
unsigned long flags;
struct fcoe_wqe *sqe;
u16 sqe_idx;
+ struct fc_rport_priv *rdata = fcport->rdata;
if (!sc_cmd) {
QEDF_ERR(&(qedf->dbg_ctx), "invalid arg\n");
@@ -2230,8 +2233,13 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
return FAILED;
}
- QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "portid = 0x%x "
- "tm_flags = %d\n", fcport->rdata->ids.port_id, tm_flags);
+ if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_SCSI_TM, "stale rport\n");
+ return FAILED;
+ }
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_SCSI_TM,
+ "portid = 0x%x tm_flags = %d\n",
+ rdata->ids.port_id, tm_flags);
io_req = qedf_alloc_cmd(fcport, QEDF_TASK_MGMT_CMD);
if (!io_req) {
@@ -2327,6 +2335,7 @@ no_flush:
rc = SUCCESS;
}
reset_tmf_err:
+ kref_put(&rdata->kref, fc_rport_destroy);
return rc;
}