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drm/mediatek: dpi: Fix NULL dereference in mtk_dpi_bridge_atomic_check 

bridge->driver_private is not set (NULL) so use bridge_to_dpi(bridge)
like it's done in bridge_atomic_get_output_bus_fmts

Fixes: ec8747c524 ("drm/mediatek: dpi: Add bus format negotiation")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Frank Wunderlich 2021-07-12 10:07:36 +02:00 committed by Chun-Kuang Hu
parent e73f0f0ee7
commit e062233c0e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/mediatek/mtk_dpi.c
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@ -605,7 +605,7 @@ static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct mtk_dpi *dpi = bridge->driver_private;
struct mtk_dpi *dpi = bridge_to_dpi(bridge);
unsigned int out_bus_format;
out_bus_format = bridge_state->output_bus_cfg.format;