From 3b952436d4cca59bfdc8ede174dd746a4b31c804 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Wed, 10 Dec 2014 10:59:13 -0300 Subject: [PATCH] [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/cx23885/cx23885-dvb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c index c47d18270cfc..6bb79355892c 100644 --- 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)) { -- 2.45.2