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@@ -295,6 +295,12 @@ int class_for_each_device(struct class *class, struct device *start,
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if (!class)
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return -EINVAL;
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+ if (!class->p) {
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+ WARN(1, "%s called for class '%s' before it was initialized",
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+ __func__, class->name);
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+ return -EINVAL;
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+ }
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+
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mutex_lock(&class->p->class_mutex);
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list_for_each_entry(dev, &class->p->class_devices, node) {
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if (start) {
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@@ -344,6 +350,11 @@ struct device *class_find_device(struct class *class, struct device *start,
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if (!class)
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return NULL;
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+ if (!class->p) {
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+ WARN(1, "%s called for class '%s' before it was initialized",
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+ __func__, class->name);
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+ return NULL;
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+ }
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mutex_lock(&class->p->class_mutex);
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list_for_each_entry(dev, &class->p->class_devices, node) {
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