On 5/29/18 12:40 AM, Christoph Hellwig wrote: > Bsg holding a reference to the parent device may result in a crash if a > bsg file handle is closed after the parent device driver has unloaded. > > Holding a reference is not really needed: the parent device must exist > between bsg_register_queue and bsg_unregister_queue. Before the device > goes away the caller does blk_cleanup_queue so that all in-flight > requests to the device are gone and all new requests cannot pass beyond > the queue. The queue itself is a refcounted object and it will stay > alive with a bsg file. > > Based on analysis, previous patch and changelog from Anatoliy Glagolev. Applied, thanks. -- Jens Axboe
