File 0011-return-proper-disk-operation-status.patch of Package grub

diff --git a/efi/efidisk.c b/efi/efidisk.c
index 001ad89..c5a2060 100644
--- a/efi/efidisk.c
+++ b/efi/efidisk.c
@@ -435,7 +435,7 @@ biosdisk (int subfunc, int drive, struct geometry *geometry,
       return -1;
     }
 
-  return 0;
+  return ret;
 }
 
 /* Some utility functions to map GRUB devices with EFI devices.  */