drm/radeon/kms: ignore unposted GPUs with no BIOS.

If we find a GPU but we can't find its BIOS and it isn't posted,
then ignore it.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index b0efd0ddae7a..f54628475456 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -975,7 +975,11 @@ int rv770_init(struct radeon_device *rdev)
         if (r)
                 return r;
         /* Post card if necessary */
-        if (!r600_card_posted(rdev) && rdev->bios) {
+        if (!r600_card_posted(rdev)) {
+                if (!rdev->bios) {
+                        dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
+                        return -EINVAL;
+                }
                 DRM_INFO("GPU not posted. posting now...\n");
                 atom_asic_init(rdev->mode_info.atom_context);
         }