Hi , i was one of the users who informed that crash do disappears . the reality with me is that the probability of occurence of crash reduces significantly but on rigourous testing crash resurfaces again . sorry for wrong reporting . Regards Amit Nagal On Sat, Sep 4, 2010 at 10:09 PM, Chris Ball <cjb@xxxxxxxxxx> wrote: > Hi Jiri, > > > If hid was ever NULL at this phase, the check couldn't improve > > anything due to hid->driver_data dereference being still before > > the check. So again my question, how this could change anything? > > > > Above that, it just makes the window shorter, but the bug is > > still there, isn't it? Is the following scenario reasonable? > > You're right -- I'd missed the other dereference, sorry. It's > surprising that we have two reports from users saying that the > patch got rid of a reproducible oops for them. > > Dan Carpenter has commented on this too: > http://www.spinics.net/lists/linux-input/msg10541.html > > As he says, it looks like the code's overdue for some real locking. > > Thanks, > > - Chris. > -- > Chris Ball <cjb@xxxxxxxxxx> > One Laptop Per Child > -- > To unsubscribe from this list: send the line "unsubscribe linux-input" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html