2013-11-30 12:12, Borislav Petkov: > On Sat, Nov 30, 2013 at 08:30:33AM +0100, Levente Kurusa wrote: >> No, if the call to put_device gives up the last reference to the >> device, then device_release gets called which in turn frees the memory >> associated with it. In this case, mce_device_release() will get >> called, which is just a simple kfree call. > > Aah, that's that delayed freeing the driver core does, right. Now you > made me go and look into detail: > > device_unregister > |->put_device > |->kobject_put > |->kref_put(&kobj->kref, kobject_release) > |->kref_sub(kref, 1, release) > |->release > |->kobject_release > |->kobject_cleanup > |->t->release > |->device_release > |->mce_device_release > Now this tree makes me wonder if there are devices where the author forgot to set a device_release or when the put_device is not called. I will take a look into this. > > Ok, I see it now. :-) :-) > > Thanks, I'll take your patch as-is. > Awesome, thanks! :-)
-- Regards, Levente Kurusa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
