On Donnerstag, 7. April 2016 09:07:59 CEST Chad Dupuis wrote: > When we are in connection recovery and the internal command timer on a > request pops, either the scsi_cmnd->device or scsi_cmnd->device->host back > pointers may be NULL as the device that the command that the request was > submitted on may have been subsequently reaped due to the connection > recovery. This can cause one or both of the pointers above to be NULL and > cause a system crash if we try to return the command to the midlayer. > > Instead, double check the pointers before the return to the midlayer so as > to prevent the crash and let the upper layers finish the session recovery > and rediscover the device. > > Signed-off-by: Chad Dupuis <[email protected]> > ---
Reviewed-by: Johannes Thumshirn <[email protected]> -- Johannes Thumshirn Storage [email protected] +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
