From a49b19f8f65ae39c7abac3a503f290736260f123 Mon Sep 17 00:00:00 2001
From: Damien Bergamini <damien@cvs.openbsd.org>
Date: Fri, 19 May 2006 18:28:24 +0000
Subject: don't leak a mbuf with each scan command

---
 sys/dev/pci/if_wpi.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'sys/dev/pci')

diff --git a/sys/dev/pci/if_wpi.c b/sys/dev/pci/if_wpi.c
index 41303e311b4..e3d2982f235 100644
--- a/sys/dev/pci/if_wpi.c
+++ b/sys/dev/pci/if_wpi.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_wpi.c,v 1.5 2006/05/19 18:24:08 damien Exp $	*/
+/*	$OpenBSD: if_wpi.c,v 1.6 2006/05/19 18:28:23 damien Exp $	*/
 
 /*-
  * Copyright (c) 2006
@@ -1159,9 +1159,21 @@ wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
 void
 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
 {
+	struct wpi_tx_ring *ring = &sc->cmdq;
+	struct wpi_tx_data *data;
+
 	if ((desc->qid & 7) != 4)
 		return;	/* not a command ack */
 
+	data = &ring->data[desc->idx];
+
+	/* if the command was mapped in a mbuf, free it */
+	if (data->m != NULL) {
+		bus_dmamap_unload(sc->sc_dmat, data->map);
+		m_freem(data->m);
+		data->m = NULL;
+	}
+
 	wakeup(&sc->cmdq.cmd[desc->idx]);
 }
 
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