"add_i2c_client" and "del_i2c_client" functions make code shorter and easy to maintain.
Signed-off-by: Nibble Max <nibble.max@xxxxxxxxx>
---
drivers/media/pci/smipcie/smipcie.c | 69 +++++++++++++++++++++----------------
1 file changed, 40 insertions(+), 29 deletions(-)
diff --git a/drivers/media/pci/smipcie/smipcie.c b/drivers/media/pci/smipcie/smipcie.c
index d1c1463..c27e45b 100644
--- a/drivers/media/pci/smipcie/smipcie.c
+++ b/drivers/media/pci/smipcie/smipcie.c
@@ -477,6 +477,33 @@ static irqreturn_t smi_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
+static struct i2c_client *smi_add_i2c_client(struct i2c_adapter *adapter,
+ struct i2c_board_info *info)
+{
+ struct i2c_client *client;
+
+ request_module(info->type);
+ client = i2c_new_device(adapter, info);
+ if (client == NULL || client->dev.driver == NULL)
+ goto err_add_i2c_client;
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ goto err_add_i2c_client;
+ }
+ return client;
+
+err_add_i2c_client:
+ client = NULL;
+ return client;
+}
+
+static void smi_del_i2c_client(struct i2c_client *client)
+{
+ module_put(client->dev.driver->owner);
+ i2c_unregister_device(client);
+}
+
static const struct m88ds3103_config smi_dvbsky_m88ds3103_cfg = {
.i2c_addr = 0x68,
.clock = 27000000,
@@ -517,18 +544,12 @@ static int smi_dvbsky_m88ds3103_fe_attach(struct smi_port *port)
strlcpy(tuner_info.type, "m88ts2022", I2C_NAME_SIZE);
tuner_info.addr = 0x60;
tuner_info.platform_data = &m88ts2022_config;
- request_module("m88ts2022");
- tuner_client = i2c_new_device(tuner_i2c_adapter, &tuner_info);
- if (tuner_client == NULL || tuner_client->dev.driver == NULL) {
+ tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
+ if (!tuner_client) {
ret = -ENODEV;
goto err_tuner_i2c_device;
}
- if (!try_module_get(tuner_client->dev.driver->owner)) {
- ret = -ENODEV;
- goto err_tuner_i2c_module;
- }
-
/* delegate signal strength measurement to tuner */
port->fe->ops.read_signal_strength =
port->fe->ops.tuner_ops.get_rf_strength;
@@ -536,8 +557,6 @@ static int smi_dvbsky_m88ds3103_fe_attach(struct smi_port *port)
port->i2c_client_tuner = tuner_client;
return ret;
-err_tuner_i2c_module:
- i2c_unregister_device(tuner_client);
err_tuner_i2c_device:
dvb_frontend_detach(port->fe);
return ret;
@@ -581,18 +600,12 @@ static int smi_dvbsky_m88rs6000_fe_attach(struct smi_port *port)
strlcpy(tuner_info.type, "m88rs6000t", I2C_NAME_SIZE);
tuner_info.addr = 0x21;
tuner_info.platform_data = &m88rs6000t_config;
- request_module("m88rs6000t");
- tuner_client = i2c_new_device(tuner_i2c_adapter, &tuner_info);
- if (tuner_client == NULL || tuner_client->dev.driver == NULL) {
+ tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
+ if (!tuner_client) {
ret = -ENODEV;
goto err_tuner_i2c_device;
}
- if (!try_module_get(tuner_client->dev.driver->owner)) {
- ret = -ENODEV;
- goto err_tuner_i2c_module;
- }
-
/* delegate signal strength measurement to tuner */
port->fe->ops.read_signal_strength =
port->fe->ops.tuner_ops.get_rf_strength;
@@ -600,8 +613,6 @@ static int smi_dvbsky_m88rs6000_fe_attach(struct smi_port *port)
port->i2c_client_tuner = tuner_client;
return ret;
-err_tuner_i2c_module:
- i2c_unregister_device(tuner_client);
err_tuner_i2c_device:
dvb_frontend_detach(port->fe);
return ret;
@@ -631,7 +642,10 @@ static int smi_fe_init(struct smi_port *port)
/* register dvb frontend */
ret = dvb_register_frontend(adap, port->fe);
if (ret < 0) {
- i2c_unregister_device(port->i2c_client_tuner);
+ if (port->i2c_client_tuner)
+ smi_del_i2c_client(port->i2c_client_tuner);
+ if (port->i2c_client_demod)
+ smi_del_i2c_client(port->i2c_client_demod);
dvb_frontend_detach(port->fe);
return ret;
}
@@ -645,15 +659,12 @@ static int smi_fe_init(struct smi_port *port)
static void smi_fe_exit(struct smi_port *port)
{
- struct i2c_client *tuner_client;
-
dvb_unregister_frontend(port->fe);
- /* remove I2C tuner */
- tuner_client = port->i2c_client_tuner;
- if (tuner_client) {
- module_put(tuner_client->dev.driver->owner);
- i2c_unregister_device(tuner_client);
- }
+ /* remove I2C demod and tuner */
+ if (port->i2c_client_tuner)
+ smi_del_i2c_client(port->i2c_client_tuner);
+ if (port->i2c_client_demod)
+ smi_del_i2c_client(port->i2c_client_demod);
dvb_frontend_detach(port->fe);
}
--
1.9.1
--
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