drm/radeon/kms/atom: make sure tables are valid (v2)

Check that atom cmd and data tables are valid
before using them.

(v2)
- fix some whitespace errors noticed by Rafał Miłecki
- check a few more cases

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index d65931d2e77a..eca714c381de 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -368,10 +368,9 @@ static bool radeon_setup_enc_conn(struct drm_device *dev)
 
         if (rdev->bios) {
                 if (rdev->is_atom_bios) {
-                        if (rdev->family >= CHIP_R600)
+                        ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
+                        if (ret == false)
                                 ret = radeon_get_atom_connector_info_from_object_table(dev);
-                        else
-                                ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
                 } else {
                         ret = radeon_get_legacy_connector_info_from_bios(dev);
                         if (ret == false)