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tty: Use spin_lock() inside existing critical region
authorPeter Hurley <peter@hurleysoftware.com>
Wed, 6 Mar 2013 12:20:55 +0000 (07:20 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 15 Mar 2013 21:02:32 +0000 (14:02 -0700)
The interrupt state does not need to be saved, disabled and
restored here; interrupts are already off because this lock
is bracketed by spin_lock_irq/spin_unlock_irq.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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