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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2008-01-30 13:33:25 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:25 +0100
commitc84d6af881be84687fa924f16b2f4b4690354165 (patch)
treeb0e2d7a170cf622e424dac7fad94e43353e74050
parent08b6d290f977d8145804fd2b9bc2c331f2484f8e (diff)
x86: reboot: remove inb_p usage
We are driving a motherboard port so use a 2uS explicit delay at this point. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/reboot.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 5b32f0b4d13..5818dc28167 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -319,9 +319,11 @@ static inline void kb_wait(void)
{
int i;
- for (i = 0; i < 0x10000; i++)
- if ((inb_p(0x64) & 0x02) == 0)
+ for (i = 0; i < 0x10000; i++) {
+ if ((inb(0x64) & 0x02) == 0)
break;
+ udelay(2);
+ }
}
void machine_emergency_restart(void)