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[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>
This commit is contained in:
Yi Zou 2011-05-16 16:45:40 -07:00 committed by James Bottomley
parent 83383dd11a
commit 6a716a8535
3 changed files with 3 additions and 1 deletions
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1
drivers/scsi/libfc/fc_exch.c
View File

@ -1978,6 +1978,7 @@ static struct fc_seq *fc_exch_seq_send(struct fc_lport *lport,
spin_unlock_bh(&ep->ex_lock);
return sp;
err:
fc_fcp_ddp_done(fr_fsp(fp));
rc = fc_exch_done_locked(ep);
spin_unlock_bh(&ep->ex_lock);
if (!rc)

2
drivers/scsi/libfc/fc_fcp.c
View File

@ -312,7 +312,7 @@ void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid)
* DDP related resources for a fcp_pkt
* @fsp: The FCP packet that DDP had been used on
*/
static void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
{
struct fc_lport *lport;

1
drivers/scsi/libfc/fc_libfc.h
View File

@ -108,6 +108,7 @@ extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */
* Set up direct-data placement for this I/O request
*/
void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp);
/*
* Module setup functions