sh-sci: avoid writing to nonexistent registers

Only write to hardware in SCI_OUT() if the register size is valid.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index b0dac379dee5..eb84833233fd 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -321,7 +321,7 @@
   unsigned int addr = port->mapbase + (offset);                 \
   if ((size) == 8) {                                            \
     ctrl_outb(value, addr);                                     \
-  } else {                                                      \
+  } else if ((size) == 16) {                                    \
     ctrl_outw(value, addr);                                     \
   }