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[SCSI] qla2xxx: Prevent CPU lockups when "ql2xdontresethba" module param is set. 

Driver is not releasing the lock if ql2xdontresethba is set, this might lead
to a lockup.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Saurav Kashyap 2011-08-16 11:31:46 -07:00 committed by James Bottomley
parent 999916dc59
commit c8582ad95b
1 changed files with 8 additions and 3 deletions
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11
drivers/scsi/qla2xxx/qla_nx.c
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@ -3761,10 +3761,15 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
qla82xx_idc_lock(ha);
break;
case QLA82XX_DEV_NEED_RESET:
if (!ql2xdontresethba)
qla82xx_need_reset_handler(vha);
if (!ql2xdontresethba)
qla82xx_need_reset_handler(vha);
else {
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
}
dev_init_timeout = jiffies +
(ha->nx_dev_init_timeout * HZ);
(ha->nx_dev_init_timeout * HZ);
break;
case QLA82XX_DEV_NEED_QUIESCENT:
qla82xx_need_qsnt_handler(vha);