libext2fs: don't break when ext2fs_clear_generic_bmap() for 32-bit bitmaps

This is only an issue for programs compiled against e2fsprogs 1.41
that manipulate bitmaps directly.  Fortunately there are very few
programs which do that, especially those that try to clear a bitmap.

Addresses-Sourceforge-Bugs: #3451486

Reported-by: robi6@users.sourceforge.net
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/lib/ext2fs/gen_bitmap64.c b/lib/ext2fs/gen_bitmap64.c
index 9dbbf9fbfd85a261a20c6f92eec49f15d023fd09..4dc4e0824aab59466cb6d3fd178f9a54b97c48ff 100644 (file)
--- a/lib/ext2fs/gen_bitmap64.c
+++ b/lib/ext2fs/gen_bitmap64.c
@@ -297,8 +297,8 @@ void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap)
 {
        if (EXT2FS_IS_32_BITMAP(bitmap))
                ext2fs_clear_generic_bitmap(bitmap);
-
-       bitmap->bitmap_ops->clear_bmap (bitmap);
+       else
+               bitmap->bitmap_ops->clear_bmap (bitmap);
 }
 
 int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,