Re: [34-longterm 024/247] USB: prevent buggy hubs from crashing theUSB stack

[Alan Stern]

On Thu, 23 Jun 2011, Paul Gortmaker wrote:

> From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> 
>                    -------------------
>     This is a commit scheduled for the next v2.6.34 longterm release.
>     If you see a problem with using this for longterm, please comment.
>                    -------------------
> 
> commit d199c96d41d80a567493e12b8e96ea056a1350c1 upstream.
> 
> If anyone comes across a high-speed hub that (by mistake or by design)
> claims to have no Transaction Translators, plugging a full- or
> low-speed device into it will cause the USB stack to crash.  This
> patch (as1446) prevents the problem by ignoring such devices, since
> the kernel has no way to communicate with them.

This commit had some unexpected fallout.  It shouldn't be merged unless 
the following upstream commits are also merged:

c5c69f3f0dcf9b569c8f3ad67f3af92cfcedac43
cee6a262550f53a13acfefbc1e3e5ff35c96182c
ec95d35a6bd0047f05fe8a21e6c52f8bb418da55

Alan Stern

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/