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scsi: qedi: Avoid unnecessary endpoint allocation on link down 

No need to allocate and deallocate endpoint memory if the physical link is
down.

Link: https://lore.kernel.org/r/20200408064332.19377-3-mrangankar@marvell.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Manish Rangankar 2020-04-07 23:43:28 -07:00 committed by Martin K. Petersen
parent 2f1ea39870
commit 2e612fab05
1 changed files with 5 additions and 6 deletions
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11
drivers/scsi/qedi/qedi_iscsi.c
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@ -836,6 +836,11 @@ qedi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
return ERR_PTR(ret);
}
if (atomic_read(&qedi->link_state) != QEDI_LINK_UP) {
QEDI_WARN(&qedi->dbg_ctx, "qedi link down\n");
return ERR_PTR(-ENXIO);
}
ep = iscsi_create_endpoint(sizeof(struct qedi_endpoint));
if (!ep) {
QEDI_ERR(&qedi->dbg_ctx, "endpoint create fail\n");
@ -870,12 +875,6 @@ qedi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
QEDI_ERR(&qedi->dbg_ctx, "Invalid endpoint\n");
}
if (atomic_read(&qedi->link_state) != QEDI_LINK_UP) {
QEDI_WARN(&qedi->dbg_ctx, "qedi link down\n");
ret = -ENXIO;
goto ep_conn_exit;
}
ret = qedi_alloc_sq(qedi, qedi_ep);
if (ret)
goto ep_conn_exit;