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[SCSI] qla2xxx: correct locking while call starget_for_each_device() 

Removed spin_unlock_irq()/spin_lock_irq() pairs surrounding
starget_for_each_device() calls.
As Matthew W. pointed out, starget_for_each_device() can be called under
a spinlock being held.
The change has been tested and verified on qla2xxx.ko module.
Thanks Matthew W. and Hisashi H. for help.

Signed-off-by: Andrew Vasquez <Andrew.vasquez@qlogic.com>
Signed-off-by: Seokmann Ju <Seokmann.ju@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Seokmann Ju 2007-01-09 11:37:52 -08:00 committed by James Bottomley
parent 3424a65d71
commit befede3dab
1 changed files with 0 additions and 4 deletions
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4
drivers/scsi/qla2xxx/qla_isr.c
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@ -650,10 +650,8 @@ qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp)
fcport->last_queue_full + ql2xqfullrampup * HZ)) fcport->last_queue_full + ql2xqfullrampup * HZ))
return; return;
spin_unlock_irq(&ha->hardware_lock);
starget_for_each_device(sdev->sdev_target, fcport, starget_for_each_device(sdev->sdev_target, fcport,
qla2x00_adjust_sdev_qdepth_up); qla2x00_adjust_sdev_qdepth_up);
spin_lock_irq(&ha->hardware_lock);
} }
/** /**
@ -923,10 +921,8 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
/* Adjust queue depth for all luns on the port. */ /* Adjust queue depth for all luns on the port. */
fcport->last_queue_full = jiffies; fcport->last_queue_full = jiffies;
spin_unlock_irq(&ha->hardware_lock);
starget_for_each_device(cp->device->sdev_target, starget_for_each_device(cp->device->sdev_target,
fcport, qla2x00_adjust_sdev_qdepth_down); fcport, qla2x00_adjust_sdev_qdepth_down);
spin_lock_irq(&ha->hardware_lock);
break; break;
} }
if (lscsi_status != SS_CHECK_CONDITION) if (lscsi_status != SS_CHECK_CONDITION)