Am 19.10.22 um 16:34 schrieb Maxime Ripard:
Commit 35a3b82f1bdd ("drm/connector: Introduce drmm_connector_init")
introduced the function drmm_connector_init() with a parameter for an
optional ddc pointer to the i2c controller used to access the DDC bus.
However, the underlying call to __drm_connector_init() was always
setting it to NULL instead of passing the ddc argument around.
This resulted in unexpected null pointer dereference on platforms
expecting to get a DDC controller.
Fixes: 35a3b82f1bdd ("drm/connector: Introduce drmm_connector_init")
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
--- drivers/gpu/drm/drm_connector.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index e3142c8142b3..61c29ce74b03 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -435,7 +435,7 @@ int drmm_connector_init(struct drm_device *dev, if (drm_WARN_ON(dev, funcs && funcs->destroy)) return -EINVAL;- ret = __drm_connector_init(dev, connector, funcs, connector_type, NULL);+ ret = __drm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret;
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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