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| author | Darrick J. Wong <djwong@us.ibm.com> | 2007-01-11 14:14:52 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-13 14:24:25 -0600 |
| commit | bf451207511d049189ddb0a4eae3acdb086a3c82 (patch) | |
| tree | 6866bb955a2e61a68cf791afc32497b24dd306c0 | |
| parent | 8880839815265ccc0edaff52ba08d750eea57acb (diff) | |
| download | linux-3.10-bf451207511d049189ddb0a4eae3acdb086a3c82.tar.gz linux-3.10-bf451207511d049189ddb0a4eae3acdb086a3c82.tar.bz2 linux-3.10-bf451207511d049189ddb0a4eae3acdb086a3c82.zip | |
[SCSI] libsas: Clean up rphys/port dev list after a discovery error on an expander
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.
This patch fixes up sas_expander.c separately because jejb has some
cleanup patches of his own that are a prerequisite.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index d31e6fa466f..0dfd97e7e96 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -668,7 +668,6 @@ static struct domain_device *sas_ex_discover_end_dev( out_list_del: list_del(&child->dev_list_node); - sas_rphy_free(rphy); out_free: sas_port_delete(phy->port); out_err: @@ -1431,14 +1430,27 @@ int sas_discover_root_expander(struct domain_device *dev) int res; struct sas_expander_device *ex = rphy_to_expander_device(dev->rphy); - sas_rphy_add(dev->rphy); + res = sas_rphy_add(dev->rphy); + if (res) + goto out_err; ex->level = dev->port->disc.max_level; /* 0 */ res = sas_discover_expander(dev); - if (!res) - sas_ex_bfs_disc(dev->port); + if (res) + goto out_err2; + + sas_ex_bfs_disc(dev->port); return res; + +out_err2: + sas_rphy_delete(dev->rphy); + dev->rphy = NULL; + return res; +out_err: + sas_rphy_free(dev->rphy); + dev->rphy = NULL; + return res; } /* ---------- Domain revalidation ---------- */ |