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Message-ID: <20100110104742.GC4769@x200> Date: Sun, 10 Jan 2010 12:47:42 +0200 From: Alexey Dobriyan <adobriyan@...il.com> To: Jiri Slaby <jirislaby@...il.com> Cc: netdev@...r.kernel.org Subject: Re: [PATCH 1/1] NET: ipv6, fix potential null dereference On Sun, Jan 10, 2010 at 11:38:57AM +0100, Jiri Slaby wrote: > On 01/10/2010 11:35 AM, Alexey Dobriyan wrote: > >> Stanse found a potential null dereference > > > > Nobody learns from Coverity, it seems. :^) > > If it is known, why the test is still there? > > I don't have access to the Coverity results anyway. Well, when Coverity first exposed their database there were innumerable "potential NULL dereference" defects and people fixed them by moving stuff and most were bogus and there were flamewars and there were second wave and so on... Apparently "check all callers" is very hard to do programmatically. > > snmp6_unregister_dev() always called with valid idev. irda patch is not right too: calling tty->ops->hook with NULL tty is impossible. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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