diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-09-05 17:53:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-05 17:53:05 +0200 |
| commit | 28c3cfd5fb998bd3683bebeebbba38baa2101cad (patch) | |
| tree | 3d325023e6dc56baa6c69fc59dd55bf37ef7967e /drivers/base/class.c | |
| parent | 04197c83b3e05546d1003cfa3ff43f1639c0057f (diff) | |
| parent | b380b0d4f7dffcc235c0facefa537d4655619101 (diff) | |
Merge branch 'linus' into x86/tracehook
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) { |