[SCSI] qla4xxx: Fix CPU lockups when ql4xdontresethba set

Fix issue where CPU lockup is seen when ql4xdontresethba is set and
driver is "stuck" in NEED_RESET state handler.

Signed-off-by: Mike Hernandez <michael.hernandez@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index f484ff438199..7fc29c6ff57e 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1836,6 +1836,10 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
                                  * reset handler */
                                 dev_init_timeout = jiffies +
                                         (ha->nx_dev_init_timeout * HZ);
+                        } else {
+                                qla4_8xxx_idc_unlock(ha);
+                                msleep(1000);
+                                qla4_8xxx_idc_lock(ha);
                         }
                         qla4_8xxx_idc_unlock(ha);
                         break;