Author: cognet
Date: Fri Jan 15 12:39:48 2010
New Revision: 202353
URL: http://svn.freebsd.org/changeset/base/202353
Log:
Do not free the dmamap if it is still busy.
Submitted by: Mark Tinguely
MFC after: 3 days
Modified:
head/sys/arm/arm/busdma_machdep.c
Modified: head/sys/arm/arm/busdma_machdep.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep.c Fri Jan 15 12:27:46 2010
(r202352)
+++ head/sys/arm/arm/busdma_machdep.c Fri Jan 15 12:39:48 2010
(r202353)
@@ -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--;
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