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authorAhmed S. Darwish <darwish.07@gmail.com>2007-01-04 22:44:54 -0500
committerDave Jones <davej@redhat.com>2007-01-29 00:06:27 -0500
commit0142f9dce8425da031d72dc3b70ee7161fcaaea2 (patch)
treee311911a8eda0b3608f567090714bd742bda07bf /drivers/cpufreq/cpufreq.c
parent5263bf65d6342e12ab716db8e529501670979321 (diff)
[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>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d91330432ba..a45cc89e387 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -722,8 +722,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
722 spin_unlock_irqrestore(&cpufreq_driver_lock, flags); 722 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
723 723
724 dprintk("CPU already managed, adding link\n"); 724 dprintk("CPU already managed, adding link\n");
725 sysfs_create_link(&sys_dev->kobj, 725 ret = sysfs_create_link(&sys_dev->kobj,
726 &managed_policy->kobj, "cpufreq"); 726 &managed_policy->kobj,
727 "cpufreq");
728 if (ret) {
729 mutex_unlock(&policy->lock);
730 goto err_out_driver_exit;
731 }
727 732
728 cpufreq_debug_enable_ratelimit(); 733 cpufreq_debug_enable_ratelimit();
729 mutex_unlock(&policy->lock); 734 mutex_unlock(&policy->lock);
@@ -770,8 +775,12 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
770 dprintk("CPU %u already managed, adding link\n", j); 775 dprintk("CPU %u already managed, adding link\n", j);
771 cpufreq_cpu_get(cpu); 776 cpufreq_cpu_get(cpu);
772 cpu_sys_dev = get_cpu_sysdev(j); 777 cpu_sys_dev = get_cpu_sysdev(j);
773 sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj, 778 ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
774 "cpufreq"); 779 "cpufreq");
780 if (ret) {
781 mutex_unlock(&policy->lock);
782 goto err_out_unregister;
783 }
775 } 784 }
776 785
777 policy->governor = NULL; /* to assure that the starting sequence is 786 policy->governor = NULL; /* to assure that the starting sequence is