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@@ -139,7 +139,7 @@ static int dev_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
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buffer = &buffer[length];
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buffer_size -= length;
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- if (dev->bus->hotplug) {
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+ if (dev->bus && dev->bus->hotplug) {
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/* have the bus specific function add its stuff */
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retval = dev->bus->hotplug (dev, envp, num_envp, buffer, buffer_size);
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if (retval) {
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