drm/i2c: tda998x: check the CEC device creation
authorJean-Francois Moine <moinejf@free.fr>
Sat, 25 Jan 2014 17:14:43 +0000 (18:14 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Sun, 2 Feb 2014 16:44:45 +0000 (16:44 +0000)
This patch checks if the CEC device is well created at intialization
time.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drivers/gpu/drm/i2c/tda998x_drv.c

index e620826..c37180a 100644 (file)
@@ -1144,6 +1144,8 @@ tda998x_encoder_init(struct i2c_client *client,
 
        priv->current_page = 0;
        priv->cec = i2c_new_dummy(client->adapter, 0x34);
+       if (!priv->cec)
+               return -ENODEV;
        priv->dpms = DRM_MODE_DPMS_OFF;
 
        encoder_slave->slave_priv = priv;