b=17445

[fs/lustre-release.git] / lustre / osc / osc_request.c

diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c
index a00185f..299b3c7 100644 (file)
--- a/lustre/osc/osc_request.c
+++ b/lustre/osc/osc_request.c
@@ -4091,12 +4091,17 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
                    client import will not have been cleaned. */
                 if (obd->u.cli.cl_import) {
                         struct obd_import *imp;
+                        down_write(&obd->u.cli.cl_sem);
                         imp = obd->u.cli.cl_import;
                         CDEBUG(D_CONFIG, "%s: client import never connected\n",
                                obd->obd_name);
                         ptlrpc_invalidate_import(imp);
-                        ptlrpc_free_rq_pool(imp->imp_rq_pool);
+                        if (imp->imp_rq_pool) {
+                                ptlrpc_free_rq_pool(imp->imp_rq_pool);
+                                imp->imp_rq_pool = NULL;
+                        }
                         class_destroy_import(imp);
+                        up_write(&obd->u.cli.cl_sem);
                         obd->u.cli.cl_import = NULL;
                 }
                 rc = obd_llog_finish(obd, 0);