The dereference to 'up' should be moved below the NULL test.
Introduced by commit ddd85e22
(serial: omap: prevent runtime PM for "no_console_suspend")
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>