[SCSI] qla4xxx: check for failed conn setup

iscsi_conn_setup can fail so we must check for NULL being
returned.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 95910c9b4776..4169c8baa112 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1207,6 +1207,9 @@ qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
         DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
         cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
                                     conn_idx);
+        if (!cls_conn)
+                return NULL;
+
         sess = cls_sess->dd_data;
         ddb_entry = sess->dd_data;
         ddb_entry->conn = cls_conn;