linux-kernel - [RFC PATCH] delete unnecessary BUG

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Date:	Tue, 22 Sep 2009 15:17:08 +0800
From:	Luming Yu <luming.yu@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH] delete unnecessary BUG_ON !policy->cur

Hi there,

When testing upstream Git tree, there is a BUG_ON hit on a IA64 system
with RHEL 5 user space installed.
Please review the patch below, If make sense, please apply.

Ps. The patch is enclosed in attachment. The inlined one
is c&p of it for reading.


Thanks,
Luming

Signed-off-by: Yu Luming <luming.yu@...el.com>

 cpufreq_userspace.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_userspace.c
b/drivers/cpufreq/cpufreq_userspace.c
index 66d2d1d..63bd232 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -119,7 +119,6 @@ static int cpufreq_governor_userspace(st
 	case CPUFREQ_GOV_START:
 		if (!cpu_online(cpu))
 			return -EINVAL;
-		BUG_ON(!policy->cur);
 		mutex_lock(&userspace_mutex);

 		if (cpus_using_userspace_governor == 0) {
--
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