Commit b684822a authored by Ville Syrjälä's avatar Ville Syrjälä

drm: Skip drm_mode_config_validate() for !modeset

drm_mode_config_init() may not have been called when the driver/device
doesn't support modeset. That will cause drm_mode_config_validate()
to oops. Skip the validation for !modeset.

TODO: We may want to consider calling drm_mode_config_init()
unconditionally to avoid similar issues elsewhere...

Fixes: 74d2aacb ("drm: Validate encoder->possible_clones")
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200318182518.31618-1-ville.syrjala@linux.intel.comReviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 8edb6997
...@@ -608,6 +608,9 @@ void drm_mode_config_validate(struct drm_device *dev) ...@@ -608,6 +608,9 @@ void drm_mode_config_validate(struct drm_device *dev)
{ {
struct drm_encoder *encoder; struct drm_encoder *encoder;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return;
drm_for_each_encoder(encoder, dev) drm_for_each_encoder(encoder, dev)
fixup_encoder_possible_clones(encoder); fixup_encoder_possible_clones(encoder);
......
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