[SCSI] libfc: export seq_release() for users of seq_assign()
Target modules using lport->tt.seq_assign() get a hold on the
exchange but have no way of releasing it. Add that.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 1f124c0..a3d6402 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1282,6 +1282,8 @@
* @fp: The request frame
*
* On success, the sequence pointer will be returned and also in fr_seq(@fp).
+ * A reference will be held on the exchange/sequence for the caller, which
+ * must call fc_seq_release().
*/
static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
{
@@ -1299,6 +1301,15 @@
}
/**
+ * fc_seq_release() - Release the hold
+ * @sp: The sequence.
+ */
+static void fc_seq_release(struct fc_seq *sp)
+{
+ fc_exch_release(fc_seq_exch(sp));
+}
+
+/**
* fc_exch_recv_req() - Handler for an incoming request
* @lport: The local port that received the request
* @mp: The EM that the exchange is on
@@ -2369,6 +2380,9 @@
if (!lport->tt.seq_assign)
lport->tt.seq_assign = fc_seq_assign;
+ if (!lport->tt.seq_release)
+ lport->tt.seq_release = fc_seq_release;
+
return 0;
}
EXPORT_SYMBOL(fc_exch_init);