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authorAnirban Chakraborty <anirban.chakraborty@qlogic.com>2009-06-03 09:55:19 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-06-08 14:46:44 -0500
commit59e0b8b088031b3b751f0608f797f2581f49a827 (patch)
tree8c1c5c84c3e86abfe9ea1bda8516988b2a8a02e2 /drivers/scsi/qla2xxx/qla_attr.c
parent94b3aa47ac1ea0aa31b3f59ad121cdf55e038594 (diff)
[SCSI] qla2xxx: Correct NULL pointer bug in cpu affinity mode.
This patch fixes a NULL pointer bug that occurs when IO is being carried out on a vport for which the cpu affinity mode is turned on. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 2bd017ffb08..74e69703ef9 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1595,6 +1595,7 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
struct qla_hw_data *ha = base_vha->hw;
uint16_t options = 0;
int cnt;
+ struct req_que *req = ha->req_q_map[0];
ret = qla24xx_vport_create_req_sanity_check(fc_vport);
if (ret) {
@@ -1650,14 +1651,16 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
qla24xx_vport_disable(fc_vport, disable);
- ret = 0;
- if (ql2xmaxqueues == 1 || ql2xmultique_tag || !ha->npiv_info)
+ if (ql2xmultique_tag) {
+ req = ha->req_q_map[1];
+ goto vport_queue;
+ } else if (ql2xmaxqueues == 1 || !ha->npiv_info)
goto vport_queue;
/* Create a request queue in QoS mode for the vport */
for (cnt = 0; cnt < ha->nvram_npiv_size; cnt++) {
if (memcmp(ha->npiv_info[cnt].port_name, vha->port_name, 8) == 0
&& memcmp(ha->npiv_info[cnt].node_name, vha->node_name,
- 8) == 0) {
+ 8) == 0) {
qos = ha->npiv_info[cnt].q_qos;
break;
}
@@ -1669,14 +1672,16 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
qla_printk(KERN_WARNING, ha,
"Can't create request queue for vp_idx:%d\n",
vha->vp_idx);
- else
+ else {
DEBUG2(qla_printk(KERN_INFO, ha,
"Request Que:%d (QoS: %d) created for vp_idx:%d\n",
ret, qos, vha->vp_idx));
+ req = ha->req_q_map[ret];
+ }
}
vport_queue:
- vha->req = ha->req_q_map[ret];
+ vha->req = req;
return 0;
vport_create_failed_2: