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[SCSI] qla2xxx: locking problem in qla2x00_init_rings() 

IRQs are already disabled here so we don't need to disable them again.
But more importantly, the spin_lock_irqsave() overwrites "flags" and
that breaks things when we want to re-enable the IRQs when we call
spin_unlock_irqrestore(&ha->hardware_lock, flags);

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
hifive-unleashed-5.1
Dan Carpenter 2010-10-15 11:27:38 -07:00 committed by James Bottomley
parent b847917890
commit 542bce1f25
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/qla2xxx/qla_init.c
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@ -1818,14 +1818,14 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
qla2x00_init_response_q_entries(rsp);
}
spin_lock_irqsave(&ha->vport_slock, flags);
spin_lock(&ha->vport_slock);
/* Clear RSCN queue. */
list_for_each_entry(vp, &ha->vp_list, list) {
vp->rscn_in_ptr = 0;
vp->rscn_out_ptr = 0;
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
spin_unlock(&ha->vport_slock);
ha->isp_ops->config_rings(vha);