[PATCH] i386: replace spin_lock_irqsave with spin_lock

IRQ is already disabled through local_irq_disable().  So
spin_lock_irqsave() can be replaced with spin_lock().

Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c
index 14b4de2882be..50dfc65319cd 100644
--- a/arch/i386/kernel/reboot.c
+++ b/arch/i386/kernel/reboot.c
@@ -198,8 +198,6 @@ static unsigned char jump_to_bios [] =
  */
 void machine_real_restart(unsigned char *code, int length)
 {
-        unsigned long flags;
-
         local_irq_disable();
 
         /* Write zero to CMOS register number 0x0f, which the BIOS POST
@@ -212,9 +210,9 @@ void machine_real_restart(unsigned char *code, int length)
            safe side.  (Yes, CMOS_WRITE does outb_p's. -  Paul G.)
          */
 
-        spin_lock_irqsave(&rtc_lock, flags);
+        spin_lock(&rtc_lock);
         CMOS_WRITE(0x00, 0x8f);
-        spin_unlock_irqrestore(&rtc_lock, flags);
+        spin_unlock(&rtc_lock);
 
         /* Remap the kernel at virtual address zero, as well as offset zero
            from the kernel segment.  This assumes the kernel segment starts at