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| author | H. Peter Anvin <hpa@zytor.com> | 2008-08-25 22:45:37 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-08-25 22:45:37 -0700 |
| commit | 94d4ac2f4a58c6e37876827c6688c61cef21290c (patch) | |
| tree | 732f4e4794f3c116041242f69754637f75c0dd57 /drivers/base/class.c | |
| parent | ed21763e7b0b3fb50e4efd9d4bc17ef5b035d304 (diff) | |
| parent | 08970fc4e0385790a7b093adfaa4165a189f9eb0 (diff) | |
Merge branch 'x86/urgent' into x86/cleanups
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) { |