IB/srp: Avoid sending a task management function needlessly
Do not send a task management function if sending will fail anyway because either there is no RDMA/RC connection or the QP is in the error state. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dave@thedillows.org> Cc: <stable@vger.kernel.org> # 3.8 Signed-off-by: Roland Dreier <roland@purestorage.com>
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@ -1695,6 +1695,9 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
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struct srp_iu *iu;
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struct srp_tsk_mgmt *tsk_mgmt;
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if (!target->connected || target->qp_in_error)
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return -1;
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init_completion(&target->tsk_mgmt_done);
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spin_lock_irq(&target->lock);
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@ -1754,8 +1757,6 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
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shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
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if (target->qp_in_error)
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return FAILED;
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if (srp_send_tsk_mgmt(target, SRP_TAG_NO_REQ, scmnd->device->lun,
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SRP_TSK_LUN_RESET))
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return FAILED;
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