tree c562a8460be432facbbba11288edaceba5ecbf1c
parent b2a5cf1bdc011f5474c72543f9d8116c0f07f452
author Oliver Neukum <oliver@neukum.org> 1254905423 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1255121529 -0700

USB: serial: fix assumption that throttle/unthrottle cannot sleep

many serial subdrivers are clearly written as if throttle/unthrottle
cannot sleep. This leads to unneeded atomic submissions. This
patch converts affected drivers in a way to makes very clear that
throttle/unthrottle can sleep. Thus future misdesigns can be avoided
and efficiency and reliability improved.

This removes any such assumption using GFP_KERNEL and spin_lock_irq()

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>