From: Frank Wunderlich Date: Mon, 12 Jul 2021 08:07:36 +0000 (+0200) Subject: drm/mediatek: dpi: Fix NULL dereference in mtk_dpi_bridge_atomic_check X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e062233c0ed0a76b6dd4ec785550419a323f9380;p=linux.git 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: ec8747c52434 ("drm/mediatek: dpi: Add bus format negotiation") Signed-off-by: Frank Wunderlich Tested-by: Hsin-Yi Wang Signed-off-by: Chun-Kuang Hu --- diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index bced555648b01..a2eca1f669840 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -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;