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amdgpu/dc: convert dc_sink to kref.

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Refcounts use krefs.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dave Airlie 2017-10-03 12:39:01 +10:00 committed by Alex Deucher
parent bfe0feb143
commit cb56aceabd
2 changed files with 11 additions and 11 deletions
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20
drivers/gpu/drm/amd/display/dc/core/dc_sink.c
View File

@ -63,19 +63,19 @@ static bool construct(struct dc_sink *sink, const struct dc_sink_init_data *init
void dc_sink_retain(struct dc_sink *sink)
{
ASSERT(atomic_read(&sink->ref_count) > 0);
atomic_inc(&sink->ref_count);
kref_get(&sink->refcount);
}
static void dc_sink_free(struct kref *kref)
{
struct dc_sink *sink = container_of(kref, struct dc_sink, refcount);
destruct(sink);
kfree(sink);
}
void dc_sink_release(struct dc_sink *sink)
{
ASSERT(atomic_read(&sink->ref_count) > 0);
atomic_dec(&sink->ref_count);
if (atomic_read(&sink->ref_count) == 0) {
destruct(sink);
kfree(sink);
}
kref_put(&sink->refcount, dc_sink_free);
}
struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params)
@ -88,7 +88,7 @@ struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params)
if (false == construct(sink, init_params))
goto construct_fail;
atomic_inc(&sink->ref_count);
kref_init(&sink->refcount);
return sink;

2
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -971,7 +971,7 @@ struct dc_sink {
struct dc_context *ctx;
/* private to dc_sink.c */
atomic_t ref_count;
struct kref refcount;
};
void dc_sink_retain(struct dc_sink *sink);