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drm/radeon: fix regression on atom cards with hardcoded EDID record. 

Since fafcf94e2b introduced an edid size, it seems to have broken this path.

This manifest as oops on T500 Lenovo laptops with dual graphics primarily.

Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33812

cc: stable@kernel.org
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2011-05-01 20:16:30 +10:00
parent e2c85d8e39
commit eaa4f5e1d0
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -1599,9 +1599,10 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
memcpy((u8 *)edid, (u8 *)&fake_edid_record->ucFakeEDIDString[0],
fake_edid_record->ucFakeEDIDLength);
if (drm_edid_is_valid(edid))
if (drm_edid_is_valid(edid)) {
rdev->mode_info.bios_hardcoded_edid = edid;
else
rdev->mode_info.bios_hardcoded_edid_size = edid_size;
} else
kfree(edid);
}
}