Fix missing byte order conversion in get_btrfs_fs_prefix function

Since btrfs on-disk format uses little-endian, the searched item types
(ROOT_REF, INODE_REF) need converting the byte order in order to
function properly on big-endian systems.

diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
index a2e360f52a6c7ca8e866e213668af0db030df76b..3978c71143d56b8b136df78c28b743944858420d 100644 (file)
--- a/grub-core/osdep/linux/getroot.c
+++ b/grub-core/osdep/linux/getroot.c
@@ -316,9 +316,9 @@ get_btrfs_fs_prefix (const char *mount_path)
 
          tree_id = sargs.buf[2];
          br = (struct grub_btrfs_root_backref *) (sargs.buf + 4);
-         inode_id = br->inode_id;
+         inode_id = grub_le_to_cpu64 (br->inode_id);
          name = br->name;
-         namelen = br->n;
+         namelen = grub_le_to_cpu16 (br->n);
        }
       else
        {
@@ -345,7 +345,7 @@ get_btrfs_fs_prefix (const char *mount_path)
 
          ir = (struct grub_btrfs_inode_ref *) (sargs.buf + 4);
          name = ir->name;
-         namelen = ir->n;
+         namelen = grub_le_to_cpu16 (ir->n);
        }
       old = ret;
       ret = xmalloc (namelen + (old ? strlen (old) : 0) + 2);