From eb47fe8033d6c2013ce47ec44f39fa0092aa8551 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 16 Nov 2015 18:19:53 +0100 Subject: drm: Do not set connector->encoder in drivers An encoder is associated with a connector by the DRM core as a result of setting up a configuration. Drivers using the atomic or legacy helpers should never set up this link, even if it is a static one. While at it, try to catch this kind of error in the future by adding a WARN_ON() in drm_mode_connector_attach_encoder(). Note that this doesn't cover all the cases, since drivers could set this up after attaching. Drivers that use the atomic helpers will get a warning later on, though, so hopefully the two combined cover enough to help people avoid this in the future. Cc: Russell King Cc: Philipp Zabel Cc: Laurent Pinchart Cc: Liviu Dudau Cc: Mark yao Signed-off-by: Thierry Reding Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1447694393-24700-1-git-send-email-thierry.reding@gmail.com --- drivers/gpu/drm/i2c/tda998x_drv.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/gpu/drm/i2c') diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index a46248f0c9c3..7885859b6386 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -1439,7 +1439,6 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data) if (ret) goto err_sysfs; - priv->connector.encoder = &priv->encoder; drm_mode_connector_attach_encoder(&priv->connector, &priv->encoder); return 0; -- cgit v1.2.1