projects / people / pmueller / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| 00e5a55c BS |
1 | From: Gerald Schaefer <geraldsc@de.ibm.com> |
| 2 | Subject: zfcp: prevent SCSI target scan for vanished rport | |
| 3 | References: bnc#440610,LTC#49373 | |
| 4 | ||
| 5 | Symptom: Oops unable to handle ptr dereference | |
| 6 | Problem: A rport might be referenced eventhough it vanished | |
| 7 | Solution: Verify that rport is still existant and online | |
| 8 | ||
| 9 | Acked-by: John Jolly <jjolly@suse.de> | |
| 10 | --- | |
| 11 | drivers/s390/scsi/zfcp_erp.c | 4 +++- | |
| 12 | 1 file changed, 3 insertions(+), 1 deletion(-) | |
| 13 | ||
| 14 | Index: linux-sles11/drivers/s390/scsi/zfcp_erp.c | |
| 15 | =================================================================== | |
| 16 | --- linux-sles11.orig/drivers/s390/scsi/zfcp_erp.c | |
| 17 | +++ linux-sles11/drivers/s390/scsi/zfcp_erp.c | |
| 18 | @@ -1187,7 +1187,9 @@ static void zfcp_erp_scsi_scan(struct wo | |
| 19 | container_of(work, struct zfcp_erp_add_work, work); | |
| 20 | struct zfcp_unit *unit = p->unit; | |
| 21 | struct fc_rport *rport = unit->port->rport; | |
| 22 | - scsi_scan_target(&rport->dev, 0, rport->scsi_target_id, | |
| 23 | + | |
| 24 | + if (rport && rport->port_state == FC_PORTSTATE_ONLINE) | |
| 25 | + scsi_scan_target(&rport->dev, 0, rport->scsi_target_id, | |
| 26 | scsilun_to_int((struct scsi_lun *)&unit->fcp_lun), 0); | |
| 27 | atomic_clear_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status); | |
| 28 | zfcp_unit_put(unit); |