From 927321440976d0781a252eefe686ae6b0f236ae2 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Thu, 27 Oct 2005 16:16:25 -0700
Subject: [PATCH] [PATCH] cpufreq: SMP fix for conservative governor
Don't try to access not-present CPUs. Conservative governor will always
oops on SMP without this fix.
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=4781
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
drivers/cpufreq/cpufreq_conservative.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index e1df376e709ea0..2ed5c4363b5362 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -315,9 +315,9 @@ static void dbs_check_cpu(int cpu)
policy = this_dbs_info->cur_policy;
if ( init_flag == 0 ) {
- for ( /* NULL */; init_flag < NR_CPUS; init_flag++ ) {
- dbs_info = &per_cpu(cpu_dbs_info, init_flag);
- requested_freq[cpu] = dbs_info->cur_policy->cur;
+ for_each_online_cpu(j) {
+ dbs_info = &per_cpu(cpu_dbs_info, j);
+ requested_freq[j] = dbs_info->cur_policy->cur;
}
init_flag = 1;
}
--
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