Fix a subtle bug in error handling of ext2 xattrs.  When ext2_sync_inode()
fails because of ENOSPC (it could not write inode's dirty data) we want to
keep xattrs in a consistent state and release the old block properly.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>