tree ad3c3d6cbcc440714a529d772ca6be940b6acbbc
parent 4d8c1dff6a8666a2e18a7d5954c2156be0d5b152
author Peter Hurley <peter@hurleysoftware.com> 1413488005 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1415234076 -0800

tty: Use spin_lock_irq() for ctrl_lock when interrupts enabled

Interrupts are enabled in the n_tty_read() loop, ioctl(TIOCPKT)
and pty driver flush_buffer() routine; no need to save and restore
local interrupt state.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>