diff options
| author | Kashyap, Desai <kashyap.desai@lsi.com> | 2009-08-07 16:04:26 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-08-13 23:26:00 +0200 |
| commit | 20f5895d55d9281830bfb7819c5c5b70b05297a6 (patch) | |
| tree | db360859d1fd134fb36e2bfea4602f98af643415 /drivers/scsi/mpt2sas | |
| parent | [SCSI] mpt2sas: Introduced check for enclosure_handle to avoid crash (diff) | |
| download | linux-20f5895d55d9281830bfb7819c5c5b70b05297a6.tar.xz linux-20f5895d55d9281830bfb7819c5c5b70b05297a6.zip | |
[SCSI] mpt2sas: Expander fix oops saying "Already part of another port"
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>
Diffstat (limited to 'drivers/scsi/mpt2sas')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index b1326bf78c9a..918445e1e65f 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3426,7 +3426,7 @@ _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) @@ -3518,12 +3518,20 @@ _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) { @@ -3540,8 +3548,9 @@ _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; } |