4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Lucas Stach <[email protected]> [Fixed differently in 4.10] The fence needs to be cleared out, otherwise the following commit might wait on a stale fence from the previous commit. This was fixed as a side effect of 9626014258a5 (drm/fence: add in-fences support) in kernel 4.10. As this commit introduces new functionality and as such can not be applied to stable, this patch is the minimal fix for the kernel 4.9 stable series. Signed-off-by: Lucas Stach <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Tested-by: Fabio Estevam <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/drm_atomic_helper.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3115,6 +3115,8 @@ void __drm_atomic_helper_plane_duplicate if (state->fb) drm_framebuffer_reference(state->fb); + + state->fence = NULL; } EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state);
