blob: f95124135a23de7b6abef7f54742b9ca4ab9c740 (
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--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -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]++;
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