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Code Issues Releases Activity

Check the sync operation.

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This commit is contained in:
Marcel Moolenaar 2015-07-28 04:54:05 +00:00
parent 033af09de1
commit f40c76d8de
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=285927
1 changed files with 6 additions and 1 deletions
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7
sys/dev/proto/proto_busdma.c
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@ -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);