Bug#651382: webcam stops working

[Jonathan Nieder <jrnieder@gmail.com>]

tags 651382 + upstream patch fixed-upstream
quit

Reinhard Karcher wrote:

> It's a kernel bug, that vanished with the latest git from kernel.org.
> The bugs exists in the 3.2-rc4 revision at git.kernel.org.

Thanks.  I guess the fix is e3420901eba6 ("EHCI : Fix a regression in
the ISO scheduler", 2011-11-28).

Luckily the commit introducing the regression (811c926c538f,
"USB: EHCI: fix HUB TT scheduling issue with iso transfer", 2011-10-27)
never hit sid.  (It entered the linux-3.1.y tree in v3.1.3 but was
reverted before the v3.1.4 release.)