scsi: libfc: free response frame from GPN_ID

fc_disc_gpn_id_resp() should be the last function using it so free it here
to avoid memory leak.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Hannes Reinecke <[email protected]>
Signed-off-by: Igor Druzhinin <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: Igor Druzhinin

drivers/scsi/libfc/fc_disc.c

@@ -628,6 +628,8 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
 	}
 out:
 	kref_put(&rdata->kref, fc_rport_destroy);
+	if (!IS_ERR(fp))
+		fc_frame_free(fp);
 }
 
 /**