diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-08-25 10:54:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-25 10:54:07 +0200 |
| commit | e4f807c2b4d81636fc63993368646c5bfd42b22f (patch) | |
| tree | 2ff100911b1ba4e26e3d9aad41edb9b48405f01e /drivers/base/class.c | |
| parent | 25258ef762bc4a05fa9c4523f7dae56e3fd01864 (diff) | |
| parent | 83097aca8567a0bd593534853b71fe0fa9a75d69 (diff) | |
Merge branch 'linus' into x86/xen
Conflicts:
arch/x86/kernel/paravirt.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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) { |