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Do not free the dmamap if it is still busy.

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Submitted by:	Mark Tinguely
MFC after:	3 days
This commit is contained in:
cognet 2010-01-15 12:39:48 +00:00
parent c67fa34ee5
commit 9d04743537
1 changed files with 1 additions and 1 deletions
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2
sys/arm/arm/busdma_machdep.c
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@ -555,12 +555,12 @@ int
bus_dmamap_destroy(bus_dma_tag_t dmat, bus_dmamap_t map)
{
_busdma_free_dmamap(map);
if (STAILQ_FIRST(&map->bpages) != NULL) {
CTR3(KTR_BUSDMA, "%s: tag %p error %d",
__func__, dmat, EBUSY);
return (EBUSY);
}
_busdma_free_dmamap(map);
if (dmat->bounce_zone)
dmat->bounce_zone->map_count--;
dmat->map_count--;