linux-kernel - [PATCH] Fix RTC_AIE with CONFIG_HPET_EMULATE

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Message-ID: <20071220144009.GA29859@suse.de>
Date:	Thu, 20 Dec 2007 15:40:09 +0100
From:	Bernhard Walle <bwalle@...e.de>
To:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Cc:	tglx@...utronix.de, clemens@...isch.de
Subject: [PATCH] Fix RTC_AIE with CONFIG_HPET_EMULATE_RTC

In the current code, RTC_AIE doesn't work if the RTC relies on
CONFIG_HPET_EMULATE_RTC because the code sets the RTC_AIE flag
in hpet_set_rtc_irq_bit(). The interrupt handles does accidentally
check for RTC_PIE and not RTC_AIE when comparing the time
which was set in hpet_set_alarm_time().

This patch is against 2.6.24-rc5-mm1.


Signed-off-by: Bernhard Walle <bwalle@...e.de>

---
 arch/x86/kernel/hpet.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -657,7 +657,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, 
 		hpet_pie_count = 0;
 	}
 
-	if (hpet_rtc_flags & RTC_PIE &&
+	if (hpet_rtc_flags & RTC_AIE &&
 	    (curr_time.tm_sec == hpet_alarm_time.tm_sec) &&
 	    (curr_time.tm_min == hpet_alarm_time.tm_min) &&
 	    (curr_time.tm_hour == hpet_alarm_time.tm_hour))
--
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