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drm: check edid data, so we deal well with broken driver.

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Jerome Glisse 2007-11-09 17:28:56 +01:00
parent ffb89d4c3b
commit e1bc147ac9
1 changed files with 8 additions and 0 deletions
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8
linux-core/drm_edid.c
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@ -469,6 +469,14 @@ int drm_add_edid_modes(struct drm_output *output, struct edid *edid)
{
int num_modes = 0;
if (edid == NULL) {
return 0;
}
if (!edid_valid(edid)) {
dev_warn(&output->dev->pdev->dev, "%s: EDID invalid.\n",
output->name);
return 0;
}
num_modes += add_established_modes(output, edid);
num_modes += add_standard_modes(output, edid);
num_modes += add_detailed_info(output, edid);