efi/chainloader: fix use after free

Found by: Coverity scan.
CID: 96714

diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
index 233237018b5be163f5f434d49e88c6bd9360b584..ec23cf4ed66fe2cc624c801af1e8ee36a2101330 100644 (file)
--- a/grub-core/loader/efi/chainloader.c
+++ b/grub-core/loader/efi/chainloader.c
@@ -351,6 +351,7 @@ grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
   loaded_image->device_handle = dev_handle;
 
   grub_file_close (file);
+  file = NULL;
 
   if (argc > 1)
     {