[PATCH v4 12/24] drm/i2c: tda998x: check the CEC device creation

[Jean-Francois Moine]

This patch checks if the CEC device is well created at intialization
time.

Tested-by: Russell King <rmk+kernel at arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf at free.fr>
---
 drivers/gpu/drm/i2c/tda998x_drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 1adc794..a3ebc08 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1177,6 +1177,8 @@ tda998x_encoder_init(struct i2c_client *client,
 	priv->current_page = 0xff;
 	priv->hdmi = client;
 	priv->cec = i2c_new_dummy(client->adapter, 0x34);
+	if (!priv->cec)
+		return -ENODEV;
 	priv->dpms = DRM_MODE_DPMS_OFF;
 
 	encoder_slave->slave_priv = priv;
-- 
1.8.5.3