From 53c2df2f4ebbc1d8231ca7cc13ac5381230888b1 Mon Sep 17 00:00:00 2001
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Thu, 3 Nov 2005 01:01:15 +0900
Subject: Use rtc_lock to protect RTC operations

Many RTC routines were not protected against each other, so there are
potential races, for example, ntp-update against /dev/rtc.  This patch
fixes them using rtc_lock.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 include/asm-mips/time.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include/asm-mips/time.h')

diff --git a/include/asm-mips/time.h b/include/asm-mips/time.h
index e22a2066587..9cc3564cc2c 100644
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -20,6 +20,9 @@
 #include <linux/linkage.h>
 #include <linux/ptrace.h>
 #include <linux/rtc.h>
+#include <linux/spinlock.h>
+
+extern spinlock_t rtc_lock;
 
 /*
  * RTC ops.  By default, they point to no-RTC functions.
-- 
cgit