iscsi: handle check condition status in retry loop

The handling of check condition was incorrect because
we would only do it after retries exceed maximum.

Fixes: 8c460269aa ("iscsi: base all handling of check condition on scsi_sense_to_errno")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Message-Id: <20200701105444.3226-1-xieyongji@bytedance.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

block/iscsi.c

@@ -266,16 +266,16 @@ iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
                 timer_mod(&iTask->retry_timer,
                           qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + retry_time);
                 iTask->do_retry = 1;
-            }
-        } else if (status == SCSI_STATUS_CHECK_CONDITION) {
-            int error = iscsi_translate_sense(&task->sense);
-            if (error == EAGAIN) {
-                error_report("iSCSI CheckCondition: %s",
-                             iscsi_get_error(iscsi));
-                iTask->do_retry = 1;
-            } else {
-                iTask->err_code = -error;
-                iTask->err_str = g_strdup(iscsi_get_error(iscsi));
+            } else if (status == SCSI_STATUS_CHECK_CONDITION) {
+                int error = iscsi_translate_sense(&task->sense);
+                if (error == EAGAIN) {
+                    error_report("iSCSI CheckCondition: %s",
+                                 iscsi_get_error(iscsi));
+                    iTask->do_retry = 1;
+                } else {
+                    iTask->err_code = -error;
+                    iTask->err_str = g_strdup(iscsi_get_error(iscsi));
+                }
             }
         }
     }