diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-03-14 14:23:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-03-14 14:23:50 -0700 |
| commit | 60b3e7bd6a490eeb63b1421d15d2f2cbf4d004c8 (patch) | |
| tree | fa49ecb22df9440faa2c89e4f6d9826b808bd74e | |
| parent | 0f0910a100951204a48052ce62ca72915511ecc6 (diff) | |
| parent | 6302ce4d80aa82b3fdb5c5cd68e7268037091b47 (diff) | |
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"This is a simple fix for a domain revalidation crash which has
recently turned up in the libsas code (applies to mvsas, isc and
aic94xx)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
libsas: Fix Kernel Crash in smp_execute_task
| -rw-r--r-- | drivers/scsi/libsas/sas_discover.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 62b58d38ce2e..60de66252fa2 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -500,6 +500,7 @@ static void sas_revalidate_domain(struct work_struct *work) struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; struct sas_ha_struct *ha = port->ha; + struct domain_device *ddev = port->port_dev; /* prevent revalidation from finding sata links in recovery */ mutex_lock(&ha->disco_mutex); @@ -514,8 +515,9 @@ static void sas_revalidate_domain(struct work_struct *work) SAS_DPRINTK("REVALIDATING DOMAIN on port %d, pid:%d\n", port->id, task_pid_nr(current)); - if (port->port_dev) - res = sas_ex_revalidate_domain(port->port_dev); + if (ddev && (ddev->dev_type == SAS_FANOUT_EXPANDER_DEVICE || + ddev->dev_type == SAS_EDGE_EXPANDER_DEVICE)) + res = sas_ex_revalidate_domain(ddev); SAS_DPRINTK("done REVALIDATING DOMAIN on port %d, pid:%d, res 0x%x\n", port->id, task_pid_nr(current), res); |