diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index 194c1306c6..2efebf3571 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -38,10 +38,6 @@ int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
             });
         v9fs_path_unlock(s);
     }
-    /* The ioctl may not be supported depending on the path */
-    if (err == -ENOTTY) {
-        err = 0;
-    }
     return err;
 }
 
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 8cbb8ae32a..83e4e93983 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -1080,10 +1080,18 @@ static void v9fs_getattr(void *opaque)
     /*  fill st_gen if requested and supported by underlying fs */
     if (request_mask & P9_STATS_GEN) {
         retval = v9fs_co_st_gen(pdu, &fidp->path, stbuf.st_mode, &v9stat_dotl);
-        if (retval < 0) {
+        switch (retval) {
+        case 0:
+            /* we have valid st_gen: update result mask */
+            v9stat_dotl.st_result_mask |= P9_STATS_GEN;
+            break;
+        case -EINTR:
+            /* request cancelled, e.g. by Tflush */
             goto out;
+        default:
+            /* failed to get st_gen: not fatal, ignore */
+            break;
         }
-        v9stat_dotl.st_result_mask |= P9_STATS_GEN;
     }
     retval = pdu_marshal(pdu, offset, "A", &v9stat_dotl);
     if (retval < 0) {