From 87886221471495c26d517a7b3ce7c7aa56cc854f Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Thu, 3 Feb 2011 01:53:18 +0100 Subject: [PATCH] drm/nv04-nv40: Fix NULL dereference when we fail to find an LVDS native mode. Reported-by: Alex Buell Signed-off-by: Francisco Jerez Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nv04_dfp.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index ef23550407b..c82db37d9f4 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -342,8 +342,8 @@ static void nv04_dfp_mode_set(struct drm_encoder *encoder, if (nv_encoder->dcb->type == OUTPUT_LVDS) { bool duallink, dummy; - nouveau_bios_parse_lvds_table(dev, nv_connector->native_mode-> - clock, &duallink, &dummy); + nouveau_bios_parse_lvds_table(dev, output_mode->clock, + &duallink, &dummy); if (duallink) regp->fp_control |= (8 << 28); } else @@ -518,8 +518,6 @@ static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode) return; if (nv_encoder->dcb->lvdsconf.use_power_scripts) { - struct nouveau_connector *nv_connector = nouveau_encoder_connector_get(nv_encoder); - /* when removing an output, crtc may not be set, but PANEL_OFF * must still be run */ @@ -527,12 +525,8 @@ static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode) nv04_dfp_get_bound_head(dev, nv_encoder->dcb); if (mode == DRM_MODE_DPMS_ON) { - if (!nv_connector->native_mode) { - NV_ERROR(dev, "Not turning on LVDS without native mode\n"); - return; - } call_lvds_script(dev, nv_encoder->dcb, head, - LVDS_PANEL_ON, nv_connector->native_mode->clock); + LVDS_PANEL_ON, nv_encoder->mode.clock); } else /* pxclk of 0 is fine for PANEL_OFF, and for a * disconnected LVDS encoder there is no native_mode -- 2.20.1