diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/mid_bios.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/mid_bios.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/mid_bios.c b/drivers/gpu/drm/gma500/mid_bios.c index 018ab469772e..128e6bb37568 100644 --- a/drivers/gpu/drm/gma500/mid_bios.c +++ b/drivers/gpu/drm/gma500/mid_bios.c @@ -142,6 +142,12 @@ static void mid_get_vbt_data(struct drm_psb_private *dev_priv) memcpy(vbt, vbt_virtual, sizeof(*vbt)); iounmap(vbt_virtual); /* Free virtual address space */ + /* No matching signature don't process the data */ + if (memcmp(vbt->signature, "$GCT", 4)) { + vbt->size = 0; + return; + } + dev_dbg(dev->dev, "GCT revision is %x\n", vbt->revision); switch (vbt->revision) { |