[CPUFREQ] check sysfs_create_link return value
Trivial patch to check sysfs_create_link return values. Fail gracefully if needed. Signed-off-by: Ahmed Darwish <darwish.07@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
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@ -722,8 +722,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
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spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
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dprintk("CPU already managed, adding link\n");
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sysfs_create_link(&sys_dev->kobj,
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&managed_policy->kobj, "cpufreq");
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ret = sysfs_create_link(&sys_dev->kobj,
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&managed_policy->kobj,
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"cpufreq");
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if (ret) {
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mutex_unlock(&policy->lock);
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goto err_out_driver_exit;
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}
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cpufreq_debug_enable_ratelimit();
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mutex_unlock(&policy->lock);
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@ -770,8 +775,12 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
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dprintk("CPU %u already managed, adding link\n", j);
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cpufreq_cpu_get(cpu);
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cpu_sys_dev = get_cpu_sysdev(j);
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sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
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ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
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"cpufreq");
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if (ret) {
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mutex_unlock(&policy->lock);
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goto err_out_unregister;
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}
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}
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policy->governor = NULL; /* to assure that the starting sequence is
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