Hi, On 03/14/12 03:10, Bart Van Assche wrote: > Now that I've had some more time to think about this: has anyone > considered to hold a reference on the SCSI host instead of the SCSI > device as long as sd_probe_async() is active ? If sd_prep_fn() can ever > see a NULL queuedata pointer then that means that > scsi_host_dev_release() can get invoked while sd_prep_fn() is running. Holding a host reference does not help, I think. It does not stop __scsi_remove_device() setting NULL to sdev's q->queuedata. So, while there might be another race between sd_probe_async and scsi_host_remove, I believe your "[PATCH] Fix device removal NULL pointer dereference" still makes sense. > That doesn't look correct to me. -- Jun'ichi Nomura, NEC Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
