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-rw-r--r--drivers/media/usb/dvb-usb/af9005.c33
-rw-r--r--drivers/media/usb/dvb-usb/cinergyT2-core.c33
-rw-r--r--drivers/media/usb/dvb-usb/cxusb.c39
-rw-r--r--drivers/media/usb/dvb-usb/cxusb.h1
-rw-r--r--drivers/media/usb/dvb-usb/dtt200u.c40
-rw-r--r--drivers/media/usb/dvb-usb/dvb-usb-init.c1
-rw-r--r--drivers/media/usb/dvb-usb/dvb-usb.h9
7 files changed, 61 insertions, 95 deletions
diff --git a/drivers/media/usb/dvb-usb/af9005.c b/drivers/media/usb/dvb-usb/af9005.c
index b257780fb380..7853261906b1 100644
--- a/drivers/media/usb/dvb-usb/af9005.c
+++ b/drivers/media/usb/dvb-usb/af9005.c
@@ -53,7 +53,6 @@ struct af9005_device_state {
u8 sequence;
int led_state;
unsigned char data[256];
- struct mutex data_mutex;
};
static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
@@ -72,7 +71,7 @@ static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
return -EINVAL;
}
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = 14; /* rest of buffer length low */
st->data[1] = 0; /* rest of buffer length high */
@@ -140,7 +139,7 @@ static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
values[i] = st->data[8 + i];
ret:
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -481,7 +480,7 @@ int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
}
packet_len = wlen + 5;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = (u8) (packet_len & 0xff);
st->data[1] = (u8) ((packet_len & 0xff00) >> 8);
@@ -512,7 +511,7 @@ int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
rbuf[i] = st->data[i + 7];
}
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -523,7 +522,7 @@ int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
u8 seq;
int ret, i;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
memset(st->data, 0, sizeof(st->data));
@@ -559,7 +558,7 @@ int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
for (i = 0; i < len; i++)
values[i] = st->data[6 + i];
}
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -847,7 +846,7 @@ static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
return 0;
}
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
/* deb_info("rc_query\n"); */
st->data[0] = 3; /* rest of packet length low */
@@ -890,7 +889,7 @@ static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
}
ret:
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -1004,20 +1003,8 @@ static struct dvb_usb_device_properties af9005_properties;
static int af9005_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
- struct dvb_usb_device *d;
- struct af9005_device_state *st;
- int ret;
-
- ret = dvb_usb_device_init(intf, &af9005_properties,
- THIS_MODULE, &d, adapter_nr);
-
- if (ret < 0)
- return ret;
-
- st = d->priv;
- mutex_init(&st->data_mutex);
-
- return 0;
+ return dvb_usb_device_init(intf, &af9005_properties,
+ THIS_MODULE, NULL, adapter_nr);
}
enum af9005_usb_table_entry {
diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
index 8ac825413d5a..290275bc7fde 100644
--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
+++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
@@ -42,7 +42,6 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct cinergyt2_state {
u8 rc_counter;
unsigned char data[64];
- struct mutex data_mutex;
};
/* We are missing a release hook with usb_device data */
@@ -56,12 +55,12 @@ static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
struct cinergyt2_state *st = d->priv;
int ret;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
st->data[1] = enable ? 1 : 0;
ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 64, 0);
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -71,12 +70,12 @@ static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
struct cinergyt2_state *st = d->priv;
int ret;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = CINERGYT2_EP1_SLEEP_MODE;
st->data[1] = enable ? 0 : 1;
ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 3, 0);
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -89,7 +88,7 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
@@ -97,7 +96,7 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
"state info\n");
}
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
/* Copy this pointer as we are gonna need it in the release phase */
cinergyt2_usb_device = adap->dev;
@@ -166,7 +165,7 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
*state = REMOTE_NO_KEY_PRESSED;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = CINERGYT2_EP1_GET_RC_EVENTS;
ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
@@ -202,29 +201,17 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
}
ret:
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
static int cinergyt2_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
- struct dvb_usb_device *d;
- struct cinergyt2_state *st;
- int ret;
-
- ret = dvb_usb_device_init(intf, &cinergyt2_properties,
- THIS_MODULE, &d, adapter_nr);
- if (ret < 0)
- return ret;
-
- st = d->priv;
- mutex_init(&st->data_mutex);
-
- return 0;
+ return dvb_usb_device_init(intf, &cinergyt2_properties,
+ THIS_MODULE, NULL, adapter_nr);
}
-
static struct usb_device_id cinergyt2_usb_table[] = {
{ USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
{ 0 }
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index 39772812269d..243403081fa5 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -68,7 +68,7 @@ static int cxusb_ctrl_msg(struct dvb_usb_device *d,
wo = (rbuf == NULL || rlen == 0); /* write-only */
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = cmd;
memcpy(&st->data[1], wbuf, wlen);
if (wo)
@@ -77,7 +77,7 @@ static int cxusb_ctrl_msg(struct dvb_usb_device *d,
ret = dvb_usb_generic_rw(d, st->data, 1 + wlen,
rbuf, rlen, 0);
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -1461,43 +1461,36 @@ static struct dvb_usb_device_properties cxusb_mygica_t230_properties;
static int cxusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
- struct dvb_usb_device *d;
- struct cxusb_state *st;
-
if (0 == dvb_usb_device_init(intf, &cxusb_medion_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_lgh064f_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_dee1601_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_lgz201_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_dtt7579_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_dualdig4_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_bluebird_nano2_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf,
&cxusb_bluebird_nano2_needsfirmware_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_aver_a868r_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf,
&cxusb_bluebird_dualdig4_rev2_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_d680_dmb_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_mygica_d689_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_mygica_t230_properties,
- THIS_MODULE, &d, adapter_nr) ||
- 0) {
- st = d->priv;
- mutex_init(&st->data_mutex);
-
+ THIS_MODULE, NULL, adapter_nr) ||
+ 0)
return 0;
- }
return -EINVAL;
}
diff --git a/drivers/media/usb/dvb-usb/cxusb.h b/drivers/media/usb/dvb-usb/cxusb.h
index 9f3ee0e47d5c..18acda19527a 100644
--- a/drivers/media/usb/dvb-usb/cxusb.h
+++ b/drivers/media/usb/dvb-usb/cxusb.h
@@ -37,7 +37,6 @@ struct cxusb_state {
struct i2c_client *i2c_client_tuner;
unsigned char data[MAX_XFER_SIZE];
- struct mutex data_mutex;
};
#endif
diff --git a/drivers/media/usb/dvb-usb/dtt200u.c b/drivers/media/usb/dvb-usb/dtt200u.c
index f88572c7ae7c..fcbff7fb0c4e 100644
--- a/drivers/media/usb/dvb-usb/dtt200u.c
+++ b/drivers/media/usb/dvb-usb/dtt200u.c
@@ -22,7 +22,6 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct dtt200u_state {
unsigned char data[80];
- struct mutex data_mutex;
};
static int dtt200u_power_ctrl(struct dvb_usb_device *d, int onoff)
@@ -30,23 +29,24 @@ static int dtt200u_power_ctrl(struct dvb_usb_device *d, int onoff)
struct dtt200u_state *st = d->priv;
int ret = 0;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = SET_INIT;
if (onoff)
ret = dvb_usb_generic_write(d, st->data, 2);
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
static int dtt200u_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
- struct dtt200u_state *st = adap->dev->priv;
+ struct dvb_usb_device *d = adap->dev;
+ struct dtt200u_state *st = d->priv;
int ret;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = SET_STREAMING;
st->data[1] = onoff;
@@ -61,26 +61,27 @@ static int dtt200u_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
ret = dvb_usb_generic_write(adap->dev, st->data, 1);
ret:
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
static int dtt200u_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
{
- struct dtt200u_state *st = adap->dev->priv;
+ struct dvb_usb_device *d = adap->dev;
+ struct dtt200u_state *st = d->priv;
int ret;
pid = onoff ? pid : 0;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = SET_PID_FILTER;
st->data[1] = index;
st->data[2] = pid & 0xff;
st->data[3] = (pid >> 8) & 0x1f;
ret = dvb_usb_generic_write(adap->dev, st->data, 4);
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -91,7 +92,7 @@ static int dtt200u_rc_query(struct dvb_usb_device *d)
u32 scancode;
int ret;
- mutex_lock(&st->data_mutex);
+ mutex_lock(&d->data_mutex);
st->data[0] = GET_RC_CODE;
ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
@@ -126,7 +127,7 @@ static int dtt200u_rc_query(struct dvb_usb_device *d)
deb_info("st->data: %*ph\n", 5, st->data);
ret:
- mutex_unlock(&st->data_mutex);
+ mutex_unlock(&d->data_mutex);
return ret;
}
@@ -145,24 +146,17 @@ static struct dvb_usb_device_properties wt220u_miglia_properties;
static int dtt200u_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
- struct dvb_usb_device *d;
- struct dtt200u_state *st;
-
if (0 == dvb_usb_device_init(intf, &dtt200u_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &wt220u_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &wt220u_fc_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &wt220u_zl0353_properties,
- THIS_MODULE, &d, adapter_nr) ||
+ THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &wt220u_miglia_properties,
- THIS_MODULE, &d, adapter_nr)) {
- st = d->priv;
- mutex_init(&st->data_mutex);
-
+ THIS_MODULE, NULL, adapter_nr))
return 0;
- }
return -ENODEV;
}
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index 3896ba9a4179..84308569e7dc 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -142,6 +142,7 @@ static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
{
int ret = 0;
+ mutex_init(&d->data_mutex);
mutex_init(&d->usb_mutex);
mutex_init(&d->i2c_mutex);
diff --git a/drivers/media/usb/dvb-usb/dvb-usb.h b/drivers/media/usb/dvb-usb/dvb-usb.h
index 639c4678c65b..107255b08b2b 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb.h
+++ b/drivers/media/usb/dvb-usb/dvb-usb.h
@@ -404,8 +404,12 @@ struct dvb_usb_adapter {
* Powered is in/decremented for each call to modify the state.
* @udev: pointer to the device's struct usb_device.
*
- * @usb_mutex: semaphore of USB control messages (reading needs two messages)
- * @i2c_mutex: semaphore for i2c-transfers
+ * @data_mutex: mutex to protect the data structure used to store URB data
+ * @usb_mutex: mutex of USB control messages (reading needs two messages).
+ * Please notice that this mutex is used internally at the generic
+ * URB control functions. So, drivers using dvb_usb_generic_rw() and
+ * derivated functions should not lock it internally.
+ * @i2c_mutex: mutex for i2c-transfers
*
* @i2c_adap: device's i2c_adapter if it uses I2CoverUSB
*
@@ -433,6 +437,7 @@ struct dvb_usb_device {
int powered;
/* locking */
+ struct mutex data_mutex;
struct mutex usb_mutex;
/* i2c */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-17 15:16:53 +0000