On Fri, Jan 05, 2007 at 12:23:04PM -0700, Matthew Wilcox wrote: > On Fri, Jan 05, 2007 at 02:10:06PM -0500, Erez Zadok wrote: > > Ah, ok. So why not put an ASSERT in there, or at least a comment, to make > > the code clearer. As it stands, anyone looking at the code in the future > > can easily rediscover this "bug" that dereferences a null ptr. > > Because anyone poking in the VFS should take the time to understand > how it works? Adding crap like BUG_ON(!nd) is pointless -- you don't > get a clearer backtrace from that than you do from a null pointer.
Except that a BUG_ON makes the author's intent clear and a NULL pointer deref doesn't. Sure, anyone poking around in the VFS should understand how it works. That doesn't mean whoever poked there before can't leave trail marks. Cheers, Muli - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
