ext2fs_set_gdt_csum(): Return an error code on errors instead of void

Change the function signature so that ext2fs_set_gdt_csum() returns an
error code.

If the inode bitmap hasn't been loaded return EXT2_ET_NO_INODE_BITMAP.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
4 files changed