serial: 8250_early: do not save and restore IER in write callback
authorMasahiro Yamada <yamada.masahiro@socionext.com>
Fri, 30 Oct 2015 02:39:03 +0000 (11:39 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 14 Dec 2015 03:59:48 +0000 (19:59 -0800)
commit2cda227bba7e8398c6f8a7792c7f35818187dcc6
tree9d5a7d0a206b7c3f3ad987cf9cf883cb8347184d
parentc0f160a7355380e9b7f9c5cbb1a0f9eecf6ec601
serial: 8250_early: do not save and restore IER in write callback

The IER has already been masked in early_serial8250_setup(), there is
no reason to save and restore it every time early_serial8250_write()
is called.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_early.c
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