On Mon, 9 Apr 2018 23:23:51 -0700 Anatoliy Glagolev <glagolig@xxxxxxxxx> wrote: > Description: > SCSI mid-layer may hold references to Scsi_Host structs when > the owning module has already unloaded. Scsi_Host release path > touches scsi_host_template struct that is usually allocated > in the unloaded module's memory. That results in a crash. > To work around the problem, this change implements > scsi_host_template_release API to be called at driver unload > path to make sure all Scsi_Host structs are gone before > releasing scsi_host_template memory. > > --- > drivers/scsi/hosts.c | 2 ++ > drivers/scsi/qla2xxx/qla_os.c | 2 ++ > drivers/scsi/scsi_priv.h | 1 + > drivers/scsi/scsi_proc.c | 64 > +++++++++++++++++++++++++++++++++++++++---- > include/scsi/scsi_host.h | 17 ++++++++++++ 5 files changed, 80 > insertions(+), 6 deletions(-) > Whee, that is ugly. Any particular reason why we can't do refcounting here? Cheers, Hannes
