summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorKashyap, Desai <kashyap.desai@lsi.com>2009-08-07 19:34:26 +0530
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-08 20:33:41 -0700
commit4f2d0e9e2bb51e8de0ac989f3023d8340813b2cc (patch)
treebfe0a655df00a7b20babe09ee63ad100a2190cc0 /drivers
parent34f5fef1b6038f7b85ff685b3676915a9668e1a8 (diff)
SCSI: mpt2sas: Expander fix oops saying "Already part of another port"
commit 20f5895d55d9281830bfb7819c5c5b70b05297a6 upstream. Kernel panic is seen because driver did not tear down the port which should be dnoe using mpt2sas_transport_port_remove(). without this fix When expander is added back we would oops inside sas_port_add_phy. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 5560ffc43bf8..0813c1d5eeaa 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -3205,7 +3205,7 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
__le64 sas_address;
int i;
unsigned long flags;
- struct _sas_port *mpt2sas_port;
+ struct _sas_port *mpt2sas_port = NULL;
int rc = 0;
if (!handle)
@@ -3297,12 +3297,20 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
&expander_pg1, i, handle))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
- continue;
+ rc = -1;
+ goto out_fail;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
- mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
- expander_pg1, sas_expander->parent_dev);
+
+ if ((mpt2sas_transport_add_expander_phy(ioc,
+ &sas_expander->phy[i], expander_pg1,
+ sas_expander->parent_dev))) {
+ printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__);
+ rc = -1;
+ goto out_fail;
+ }
}
if (sas_expander->enclosure_handle) {
@@ -3319,8 +3327,9 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
out_fail:
- if (sas_expander)
- kfree(sas_expander->phy);
+ if (mpt2sas_port)
+ mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
+ sas_expander->parent_handle);
kfree(sas_expander);
return rc;
}