make sure exception callback is called with stop_on_first_crash on

Author: oesteban

nipype/pipeline/plugins/linear.py

@@ -45,7 +45,6 @@ def run(self, graph, config, updatehash=False):
                 if self._status_callback:
                     self._status_callback(node, 'end')
             except:
-                os.chdir(old_wd)
                 # bare except, but i really don't know where a
                 # node might fail
                 crashfile = report_crash(node)
@@ -56,6 +55,8 @@ def run(self, graph, config, updatehash=False):
                 notrun.append(
                     dict(node=node, dependents=subnodes, crashfile=crashfile))
                 donotrun.extend(subnodes)
+            finally:
                 if self._status_callback:
                     self._status_callback(node, 'exception')
+                os.chdir(old_wd)
         report_nodes_not_run(notrun)