fsck.f2fs: fix null buffer error with dev_fill

Make fsck use dev_fill_block() with zeroed buffer instead of dev_fill().

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
1 file changed