bwn_dma_ringfree
static void bwn_dma_ringfree(struct bwn_dma_ring **);
bwn_dma_ringfree(&dma->rx);
bwn_dma_ringfree(&dma->wme[WME_AC_BK]);
bwn_dma_ringfree(&dma->wme[WME_AC_BE]);
bwn_dma_ringfree(&dma->wme[WME_AC_VI]);
bwn_dma_ringfree(&dma->wme[WME_AC_VO]);
bwn_dma_ringfree(&dma->mcast);
fail7: bwn_dma_ringfree(&dma->mcast);
fail6: bwn_dma_ringfree(&dma->wme[WME_AC_VO]);
fail5: bwn_dma_ringfree(&dma->wme[WME_AC_VI]);
fail4: bwn_dma_ringfree(&dma->wme[WME_AC_BE]);
fail3: bwn_dma_ringfree(&dma->wme[WME_AC_BK]);