diff options
Diffstat (limited to 'drivers/scsi/libsas/sas_expander.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index b500f0c1449c..8727436b222d 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -507,14 +507,21 @@ static int sas_dev_present_in_domain(struct asd_sas_port *port, int sas_smp_get_phy_events(struct sas_phy *phy) { int res; + u8 *req; + u8 *resp; struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent); struct domain_device *dev = sas_find_dev_by_rphy(rphy); - u8 *req = alloc_smp_req(RPEL_REQ_SIZE); - u8 *resp = kzalloc(RPEL_RESP_SIZE, GFP_KERNEL); - if (!resp) + req = alloc_smp_req(RPEL_REQ_SIZE); + if (!req) return -ENOMEM; + resp = alloc_smp_resp(RPEL_RESP_SIZE); + if (!resp) { + kfree(req); + return -ENOMEM; + } + req[1] = SMP_REPORT_PHY_ERR_LOG; req[9] = phy->number; @@ -1879,7 +1886,7 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, struct request *req) { struct domain_device *dev; - int ret, type = rphy->identify.device_type; + int ret, type; struct request *rsp = req->next_rq; if (!rsp) { @@ -1888,12 +1895,13 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, return -EINVAL; } - /* seems aic94xx doesn't support */ + /* no rphy means no smp target support (ie aic94xx host) */ if (!rphy) { printk("%s: can we send a smp request to a host?\n", __FUNCTION__); return -EINVAL; } + type = rphy->identify.device_type; if (type != SAS_EDGE_EXPANDER_DEVICE && type != SAS_FANOUT_EXPANDER_DEVICE) { |