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path: root/drivers/staging/gma500/psb_intel_bios.c
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Diffstat (limited to 'drivers/staging/gma500/psb_intel_bios.c')
-rw-r--r--drivers/staging/gma500/psb_intel_bios.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/staging/gma500/psb_intel_bios.c b/drivers/staging/gma500/psb_intel_bios.c
index 48ac8ba7f40b..417965da5e24 100644
--- a/drivers/staging/gma500/psb_intel_bios.c
+++ b/drivers/staging/gma500/psb_intel_bios.c
@@ -154,10 +154,15 @@ static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
fill_detail_timing_data(panel_fixed_mode, dvo_timing);
- dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
-
- DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
- drm_mode_debug_printmodeline(panel_fixed_mode);
+ if (panel_fixed_mode->htotal > 0 && panel_fixed_mode->vtotal > 0) {
+ dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
+ DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
+ drm_mode_debug_printmodeline(panel_fixed_mode);
+ } else {
+ DRM_DEBUG("Ignoring bogus LVDS VBT mode.\n");
+ dev_priv->lvds_vbt = 0;
+ kfree(panel_fixed_mode);
+ }
return;
}