On Fri, Jan 24, 2014 at 11:21:26AM +0100, Denys Vlasenko wrote: > If given buffer size is zero, we forget to rcu_read_unlock() > on error path.
Er... Where could we ever get called with size zero? IOW, the real question is whether that check makes any sense. If nothing else, a much more obvious fix (again, assuming there is a call chain that could have triggered that in the first place), would be to take that if (buflen < 1) goto Elong; on the very top of __dentry_path(). Note that buflen never change, so this check could bloody well be handled once - and earlier. But again, the callers shouldn't be calling it that way... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/