multiboot2: Fix information request tag size calculation

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>

diff --git a/grub-core/loader/multiboot_mbi2.c b/grub-core/loader/multiboot_mbi2.c
index 6f74aee..d7c19bc 100644 (file)
--- a/grub-core/loader/multiboot_mbi2.c
+++ b/grub-core/loader/multiboot_mbi2.c
@@ -150,7 +150,7 @@ grub_multiboot_load (grub_file_t file, const char *filename)
            = (struct multiboot_header_tag_information_request *) tag;
          if (request_tag->flags & MULTIBOOT_HEADER_TAG_OPTIONAL)
            break;
-         for (i = 0; i < (request_tag->size - sizeof (request_tag))
+         for (i = 0; i < (request_tag->size - sizeof (*request_tag))
                 / sizeof (request_tag->requests[0]); i++)
            switch (request_tag->requests[i])
              {