linux-kernel - [PATCH 11/38] tick-common: fix wrong check in tick_check

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Date:	Mon, 14 Apr 2014 21:53:33 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	tglx@...utronix.de
Cc:	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	fweisbec@...il.com, Arvind.Chauhan@....com,
	linaro-networking@...aro.org,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH 11/38] tick-common: fix wrong check in tick_check_replacement()

tick_check_replacement() returns if a replacement of clock_event_device is
possible or not. It does this as the first check:

	if (tick_check_percpu(curdev, newdev, smp_processor_id()))
		return false;

This looks wrong as we are returning false when tick_check_percpu() cpu returned
true. Probably Thomas forgot '!' here in his commit: 03e13cf5e ?

Fix it by placing a '!' before tick_check_percpu().

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/time/tick-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 395cbbd..8650026 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -257,7 +257,7 @@ static bool tick_check_preferred(struct clock_event_device *curdev,
 bool tick_check_replacement(struct clock_event_device *curdev,
 			    struct clock_event_device *newdev)
 {
-	if (tick_check_percpu(curdev, newdev, smp_processor_id()))
+	if (!tick_check_percpu(curdev, newdev, smp_processor_id()))
 		return false;
 
 	return tick_check_preferred(curdev, newdev);
-- 
1.7.12.rc2.18.g61b472e

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