serial: Fix using plain integer instead of Null pointer
authorSugaya Taichi <sugaya.taichi@socionext.com>
Thu, 18 Apr 2019 06:21:25 +0000 (15:21 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 25 Apr 2019 09:37:41 +0000 (11:37 +0200)
commit6bc3703dcf0e6891a55987cbae0823c8c185c5e5
tree4da178a89ba13d83959bd063feab1d6b28783cdf
parent3b8a1f45e1b3886593a7cbb0aca09d4d0a9e23df
serial: Fix using plain integer instead of Null pointer

Fix build warning that using plain integer as Null pointer.
This is reported by kbuild test robot.

Fixes: ba44dc043004 ("serial: Add Milbeaut serial control")
Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/milbeaut_usio.c