diff options
| author | Darrick J. Wong <djwong@us.ibm.com> | 2007-01-11 14:14:49 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-13 14:23:36 -0600 |
| commit | 8880839815265ccc0edaff52ba08d750eea57acb (patch) | |
| tree | b98c920cb0cc5bdd90cd3cbf66d4d6a075e37922 /drivers | |
| parent | befede3dabd204e9c546cbfbe391b29286c57da2 (diff) | |
[SCSI] libsas: Clean up rphys/port dev list after a discovery error.
sas_get_port_device assigns a rphy to a domain device in anticipation
of finding a disk. When a discovery error occurs in
sas_discover_{sata,sas,expander}*, however, we need to clean up that
rphy and the port device list so that we don't GPF. In addition, we
need to check the result of the second sas_notify_lldd_dev_found.
This patch seems ok on a x260, x366 and x206m.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/libsas/sas_discover.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index fb7df7b7581..21f538e4a0b 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -548,7 +548,7 @@ int sas_discover_sata(struct domain_device *dev) res = sas_notify_lldd_dev_found(dev); if (res) - return res; + goto out_err2; switch (dev->dev_type) { case SATA_DEV: @@ -560,11 +560,25 @@ int sas_discover_sata(struct domain_device *dev) default: break; } + if (res) + goto out_err; sas_notify_lldd_dev_gone(dev); - if (!res) { - sas_notify_lldd_dev_found(dev); - } + res = sas_notify_lldd_dev_found(dev); + if (res) + goto out_err2; + + res = sas_rphy_add(dev->rphy); + if (res) + goto out_err; + + return res; + +out_err: + sas_notify_lldd_dev_gone(dev); +out_err2: + sas_rphy_free(dev->rphy); + dev->rphy = NULL; return res; } @@ -580,7 +594,7 @@ int sas_discover_end_dev(struct domain_device *dev) res = sas_notify_lldd_dev_found(dev); if (res) - return res; + goto out_err2; res = sas_rphy_add(dev->rphy); if (res) @@ -589,12 +603,21 @@ int sas_discover_end_dev(struct domain_device *dev) /* do this to get the end device port attributes which will have * been scanned in sas_rphy_add */ sas_notify_lldd_dev_gone(dev); - sas_notify_lldd_dev_found(dev); + res = sas_notify_lldd_dev_found(dev); + if (res) + goto out_err3; return 0; out_err: sas_notify_lldd_dev_gone(dev); +out_err2: + sas_rphy_free(dev->rphy); + dev->rphy = NULL; + return res; +out_err3: + sas_rphy_delete(dev->rphy); + dev->rphy = NULL; return res; } @@ -686,6 +709,10 @@ static void sas_discover_domain(struct work_struct *work) } if (error) { + spin_lock(&port->dev_list_lock); + list_del_init(&port->port_dev->dev_list_node); + spin_unlock(&port->dev_list_lock); + kfree(port->port_dev); /* not kobject_register-ed yet */ port->port_dev = NULL; } |