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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-10 11:32:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 11:32:52 +0200 |
| commit | e92b4fdacc6a7d8cc7895b81347671d5fcd6c5e1 (patch) | |
| tree | 4f84567261682d8ec2ad4102bce1ff970a6eed1a /drivers/base/class.c | |
| parent | 9fcaff0e660d886e9a766460adbe558dd25de31b (diff) | |
| parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) | |
Merge commit 'v2.6.27-rc6' into x86/iommu
Diffstat (limited to 'drivers/base/class.c')
| -rw-r--r-- | drivers/base/class.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c index 5667c2f02c5..cc5e28c8885 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -295,6 +295,12 @@ int class_for_each_device(struct class *class, struct device *start, if (!class) return -EINVAL; + if (!class->p) { + WARN(1, "%s called for class '%s' before it was initialized", + __func__, class->name); + return -EINVAL; + } + mutex_lock(&class->p->class_mutex); list_for_each_entry(dev, &class->p->class_devices, node) { if (start) { @@ -344,6 +350,11 @@ struct device *class_find_device(struct class *class, struct device *start, if (!class) return NULL; + if (!class->p) { + WARN(1, "%s called for class '%s' before it was initialized", + __func__, class->name); + return NULL; + } mutex_lock(&class->p->class_mutex); list_for_each_entry(dev, &class->p->class_devices, node) { |