From: Magnus Damm <magnus.damm@gmail.com>
Date: Wed, 23 Apr 2008 12:37:39 +0000 (+0900)
Subject: sh-sci: avoid writing to nonexistent registers
X-Git-Tag: v2.6.26-rc2~14^2~9
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d2c2f3ef7c5425d23424326a2345c385bb2d415;p=linux-2.6

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>
---

diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index b0dac379de..eb84833233 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);					\
   }