qla2xxx: release request queue reservation.

commit 810e30bc4658e9c069577bde52394a5af872803c upstream.

Request IOCB queue element(s) is reserved during
good path IO.  Under error condition such as unable
to allocate IOCB handle condition, the IOCB count
that was reserved is not released.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index ed39ed2..02980e2 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -2341,9 +2341,10 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
                res = qlt_build_ctio_crc2_pkt(&prm, vha);
        else
                res = qlt_24xx_build_ctio_pkt(&prm, vha);
-       if (unlikely(res != 0))
+       if (unlikely(res != 0)) {
+               vha->req->cnt += full_req_cnt;
                goto out_unmap_unlock;
-
+       }
 
        pkt = (struct ctio7_to_24xx *)prm.pkt;
 
@@ -2481,8 +2482,11 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
        else
                res = qlt_24xx_build_ctio_pkt(&prm, vha);
 
-       if (unlikely(res != 0))
+       if (unlikely(res != 0)) {
+               vha->req->cnt += prm.req_cnt;
                goto out_unlock_free_unmap;
+       }
+
        pkt = (struct ctio7_to_24xx *)prm.pkt;
        pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
            CTIO7_FLAGS_STATUS_MODE_0);