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| author | Jeff Garzik <jeff@garzik.org> | 2006-10-20 14:31:00 -0700 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-10-21 01:33:12 -0400 |
| commit | 914f7c31b0bea0ccf3bf474d0b99d803f7985097 (patch) | |
| tree | 06c8ff4bf0f12170904bf681ffaedd14f368a7c8 /drivers/cpufreq/cpufreq_ondemand.c | |
| parent | 95dd722700dc9bbb000d51cab07dde48720e9178 (diff) | |
| download | linux-914f7c31b0bea0ccf3bf474d0b99d803f7985097.tar.gz linux-914f7c31b0bea0ccf3bf474d0b99d803f7985097.tar.bz2 linux-914f7c31b0bea0ccf3bf474d0b99d803f7985097.zip | |
[CPUFREQ] handle sysfs errors
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_ondemand.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_ondemand.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 291cfe9400a1..cbde076b5715 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -473,6 +473,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int cpu = policy->cpu; struct cpu_dbs_info_s *this_dbs_info; unsigned int j; + int rc; this_dbs_info = &per_cpu(cpu_dbs_info, cpu); @@ -501,6 +502,16 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, return -ENOSPC; } } + + rc = sysfs_create_group(&policy->kobj, &dbs_attr_group); + if (rc) { + if (dbs_enable == 1) + destroy_workqueue(kondemand_wq); + dbs_enable--; + mutex_unlock(&dbs_mutex); + return rc; + } + for_each_cpu_mask(j, policy->cpus) { struct cpu_dbs_info_s *j_dbs_info; j_dbs_info = &per_cpu(cpu_dbs_info, j); @@ -510,7 +521,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, j_dbs_info->prev_cpu_wall = get_jiffies_64(); } this_dbs_info->enable = 1; - sysfs_create_group(&policy->kobj, &dbs_attr_group); /* * Start the timerschedule work, when this governor * is used for first time |