diff options
Diffstat (limited to 'sys/dev/proto/proto_busdma.c')
| -rw-r--r-- | sys/dev/proto/proto_busdma.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/proto/proto_busdma.c b/sys/dev/proto/proto_busdma.c index 52f1146..6f6bf7b 100644 --- a/sys/dev/proto/proto_busdma.c +++ b/sys/dev/proto/proto_busdma.c @@ -325,7 +325,12 @@ static int proto_busdma_sync(struct proto_busdma *busdma, struct proto_md *md, struct proto_ioc_busdma *ioc) { - + u_int ops; + + ops = BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE | + BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE; + if (ioc->u.sync.op & ~ops) + return (EINVAL); if (!md->physaddr) return (ENXIO); bus_dmamap_sync(md->bd_tag, md->bd_map, ioc->u.sync.op); |
