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st/va: Fix vaSyncSurface with no outstanding operation

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Fixes crash if the application doesn't do what the state tracker expects.

Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Mark Thompson
2016-09-26 23:22:31 +01:00
committed by Christian König
parent df920367bf
commit a543f231d7
1 changed files with 7 additions and 0 deletions
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7
src/gallium/state_trackers/va/surface.c
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@@ -111,6 +111,12 @@ vlVaSyncSurface(VADriverContextP ctx, VASurfaceID render_target)
return VA_STATUS_ERROR_INVALID_SURFACE;
}
if (!surf->feedback) {
// No outstanding operation: nothing to do.
pipe_mutex_unlock(drv->mutex);
return VA_STATUS_SUCCESS;
}
context = handle_table_get(drv->htab, surf->ctx);
if (!context) {
pipe_mutex_unlock(drv->mutex);
@@ -126,6 +132,7 @@ vlVaSyncSurface(VADriverContextP ctx, VASurfaceID render_target)
if (frame_diff < 2)
context->decoder->flush(context->decoder);
context->decoder->get_feedback(context->decoder, surf->feedback, &(surf->coded_buf->coded_size));
surf->feedback = NULL;
}
pipe_mutex_unlock(drv->mutex);
return VA_STATUS_SUCCESS;