[media] cx23885: do not unregister demod I2C client twice on error

Demod I2C client should be NULL after demod is unregistered on error
path, otherwise it will be unregistered again when driver is unload.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c
index c47d18270cfc8899f262be3f338329e869bb4cb2..6bb79355892c74bc8b929a2f138217f413e65e4c 100644 (file)
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -1793,12 +1793,14 @@ static int dvb_register(struct cx23885_tsport *port)
                                        client_tuner->dev.driver == NULL) {
                                module_put(client_demod->dev.driver->owner);
                                i2c_unregister_device(client_demod);
+                               port->i2c_client_demod = NULL;
                                goto frontend_detach;
                        }
                        if (!try_module_get(client_tuner->dev.driver->owner)) {
                                i2c_unregister_device(client_tuner);
                                module_put(client_demod->dev.driver->owner);
                                i2c_unregister_device(client_demod);
+                               port->i2c_client_demod = NULL;
                                goto frontend_detach;
                        }
                        port->i2c_client_tuner = client_tuner;
@@ -1843,12 +1845,14 @@ static int dvb_register(struct cx23885_tsport *port)
                                client_tuner->dev.driver == NULL) {
                        module_put(client_demod->dev.driver->owner);
                        i2c_unregister_device(client_demod);
+                       port->i2c_client_demod = NULL;
                        goto frontend_detach;
                }
                if (!try_module_get(client_tuner->dev.driver->owner)) {
                        i2c_unregister_device(client_tuner);
                        module_put(client_demod->dev.driver->owner);
                        i2c_unregister_device(client_demod);
+                       port->i2c_client_demod = NULL;
                        goto frontend_detach;
                }
                port->i2c_client_tuner = client_tuner;
@@ -1989,6 +1993,7 @@ static int dvb_register(struct cx23885_tsport *port)
                                client_tuner->dev.driver == NULL) {
                        module_put(client_demod->dev.driver->owner);
                        i2c_unregister_device(client_demod);
+                       port->i2c_client_demod = NULL;
                        goto frontend_detach;
                }
                if (!try_module_get(client_tuner->dev.driver->owner)) {