drm/i2c: tda998x: move drm_i2c_encoder_destroy call

Currently tda998x_encoder_destroy() calls cec_write() and reg_clear(),
as part of the release procedure. Such calls need to access the I2C bus
and therefore, we need to call them before drm_i2c_encoder_destroy()
which unregisters the I2C device.

This commit moves the latter so it's done afterwards.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Ezequiel García <ezequiel@vanguardiasur.com.ar>
Cc: <stable@vger.kernel.org> #v3.9+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/gpu/drm/i2c/tda998x_drv.c

@@ -1183,7 +1183,6 @@ static void
 tda998x_encoder_destroy(struct drm_encoder *encoder)
 {
 	struct tda998x_priv *priv = to_tda998x_priv(encoder);
-	drm_i2c_encoder_destroy(encoder);
 
 	/* disable all IRQs and free the IRQ handler */
 	cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
@@ -1193,6 +1192,7 @@ tda998x_encoder_destroy(struct drm_encoder *encoder)
 
 	if (priv->cec)
 		i2c_unregister_device(priv->cec);
+	drm_i2c_encoder_destroy(encoder);
 	kfree(priv);
 }