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authorDarrick J. Wong <djwong@us.ibm.com>2007-01-11 14:14:52 -0800
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-01-13 14:24:25 -0600
commitbf451207511d049189ddb0a4eae3acdb086a3c82 (patch)
tree6866bb955a2e61a68cf791afc32497b24dd306c0 /drivers/scsi
parent8880839815265ccc0edaff52ba08d750eea57acb (diff)
[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>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/libsas/sas_expander.c20
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 ---------- */