[SCSI] libfc: release DDP context if frame_send() fails
In case frame_send() fails, make sure to let the underlying HW release the DDP context that has already been set up before calling frame_send(). Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <jbottomley@parallels.com>
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3 changed files with 3 additions and 1 deletions
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@ -1978,6 +1978,7 @@ static struct fc_seq *fc_exch_seq_send(struct fc_lport *lport,
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spin_unlock_bh(&ep->ex_lock);
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return sp;
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err:
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fc_fcp_ddp_done(fr_fsp(fp));
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rc = fc_exch_done_locked(ep);
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spin_unlock_bh(&ep->ex_lock);
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if (!rc)
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@ -312,7 +312,7 @@ void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid)
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* DDP related resources for a fcp_pkt
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* @fsp: The FCP packet that DDP had been used on
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*/
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static void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
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void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
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{
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struct fc_lport *lport;
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@ -108,6 +108,7 @@ extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */
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* Set up direct-data placement for this I/O request
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*/
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void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
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void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp);
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/*
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* Module setup functions
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