blob: 4639b5abfb767593041a3135a2d8bdf5740a150a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
Index: madwifi-trunk-r3776/ath/if_ath.c
===================================================================
--- madwifi-trunk-r3776.orig/ath/if_ath.c 2008-07-17 00:52:28.000000000 +0200
+++ madwifi-trunk-r3776/ath/if_ath.c 2008-07-17 00:53:04.000000000 +0200
@@ -6451,9 +6451,6 @@
rs = &bf->bf_dsstatus.ds_rxstat;
len = rs->rs_datalen;
- /* DMA sync. dies spectacularly if len == 0 */
- if (len == 0)
- goto rx_next;
if (rs->rs_more) {
/* Frame spans multiple descriptors; this
* cannot happen yet as we don't support
@@ -6513,8 +6510,12 @@
* setup again to receive another frame.
* NB: Meta-data (rs, noise, tsf) in the ath_buf is still
* used. */
- bus_dma_sync_single(sc->sc_bdev,
- bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
+
+ /* DMA sync. dies spectacularly if len == 0 */
+ if (len != 0) {
+ bus_dma_sync_single(sc->sc_bdev,
+ bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
+ }
skb = ath_rxbuf_take_skb(sc, bf);
sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;
|
