[SCSI] qla2xxx: Don't issue set or get port param MBC if invalid port loop id

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 3a0248388505..20eaa1c42ae2 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -1222,6 +1222,13 @@ qla24xx_iidma(struct fc_bsg_job *bsg_job)
                 return -EINVAL;
         }
 
+        if (fcport->loop_id == FC_NO_LOOP_ID) {
+                DEBUG2(printk(KERN_ERR "%s(%ld): Invalid port loop id, "
+                        "loop_id = 0x%x\n",
+                        __func__, vha->host_no, fcport->loop_id));
+                return -EINVAL;
+        }
+
         if (port_param->mode)
                 rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
                         port_param->speed, mb);