usb: retry reset if a device times out

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commit 264904ccc3 upstream.

Some devices I got show an inability to operate right after
power on if they are already connected. They are beyond recovery
if the descriptors are requested multiple times. So in case of
a timeout we rather bail early and reset again. But it must be
done only on the first loop lest we get into a reset/time out
spiral that can be overcome with a retry.

This patch is a rework of a patch that fell through the cracks.
http://www.spinics.net/lists/linux-usb/msg103263.html

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Oliver Neukum 2016-02-10 11:33:18 +01:00 • committed by Greg Kroah-Hartman

parent 8907d8a6fd

commit 951822beba

1 changed files with 7 additions and 1 deletions

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drivers/usb/core/hub.c

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