# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1679846067 -7200
# Node ID 5b8ea85e76681d3cf728e686ede2e25a1c3d2143
# Parent  2dd97d71e6273478226e3c982ec886cd30f2d69d
Propagate errors when failing to detach dataspaces.

diff -r 2dd97d71e627 -r 5b8ea85e7668 libfsclient/lib/src/file.cc
--- a/libfsclient/lib/src/file.cc	Sun Mar 26 01:52:16 2023 +0100
+++ b/libfsclient/lib/src/file.cc	Sun Mar 26 17:54:27 2023 +0200
@@ -367,13 +367,18 @@
                offset_t start_visible, offset_t end_visible,
                l4re_rm_flags_t region_flags)
 {
+  long err;
+
   if (file->memory != NULL)
   {
-    ipc_detach_dataspace(file->memory);
+    err = ipc_detach_dataspace(file->memory);
+    if (err)
+      return err;
+
     file->memory = NULL;
   }
 
-  long err = file_mmap_only(file, position, length, start_visible, end_visible);
+  err = file_mmap_only(file, position, length, start_visible, end_visible);
 
   if (err)
     return err;
@@ -756,7 +761,10 @@
     return err;
 
   if (pipe->memory != NULL)
-    ipc_detach_dataspace(pipe->memory);
+    err = ipc_detach_dataspace(pipe->memory);
+
+  if (err)
+    return err;
 
   pipe->end_pos = pipe->size;
   pipe->memory = NULL;