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[media] dw2102: fix compile warnings
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media_build/v4l/dw2102.c:151:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/dw2102.c:224:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/dw2102.c:279:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/dw2102.c:352:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/dw2102.c:435:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/dw2102.c:499:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans Verkuil authored and Mauro Carvalho Chehab committed May 14, 2012
1 parent 9346459 commit d51dbec
Showing 1 changed file with 36 additions and 40 deletions.
76 changes: 36 additions & 40 deletions drivers/media/dvb/dvb-usb/dw2102.c
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Original file line number Diff line number Diff line change
Expand Up @@ -148,7 +148,7 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int i = 0, ret = 0;
int i = 0;
u8 buf6[] = {0x2c, 0x05, 0xc0, 0, 0, 0, 0};
u16 value;

Expand All @@ -162,7 +162,7 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
/* read stv0299 register */
value = msg[0].buf[0];/* register */
for (i = 0; i < msg[1].len; i++) {
ret = dw210x_op_rw(d->udev, 0xb5, value + i, 0,
dw210x_op_rw(d->udev, 0xb5, value + i, 0,
buf6, 2, DW210X_READ_MSG);
msg[1].buf[i] = buf6[0];
}
Expand All @@ -174,7 +174,7 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
buf6[0] = 0x2a;
buf6[1] = msg[0].buf[0];
buf6[2] = msg[0].buf[1];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
buf6, 3, DW210X_WRITE_MSG);
break;
case 0x60:
Expand All @@ -187,25 +187,25 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
buf6[4] = msg[0].buf[1];
buf6[5] = msg[0].buf[2];
buf6[6] = msg[0].buf[3];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
buf6, 7, DW210X_WRITE_MSG);
} else {
/* read from tuner */
ret = dw210x_op_rw(d->udev, 0xb5, 0, 0,
dw210x_op_rw(d->udev, 0xb5, 0, 0,
buf6, 1, DW210X_READ_MSG);
msg[0].buf[0] = buf6[0];
}
break;
case (DW2102_RC_QUERY):
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
buf6, 2, DW210X_READ_MSG);
msg[0].buf[0] = buf6[0];
msg[0].buf[1] = buf6[1];
break;
case (DW2102_VOLTAGE_CTRL):
buf6[0] = 0x30;
buf6[1] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
buf6, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -221,7 +221,6 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
struct i2c_msg msg[], int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int ret = 0;
u8 buf6[] = {0, 0, 0, 0, 0, 0, 0};

if (!d)
Expand All @@ -235,10 +234,10 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
buf6[0] = msg[0].addr << 1;
buf6[1] = msg[0].len;
buf6[2] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
buf6, msg[0].len + 2, DW210X_WRITE_MSG);
/* read si2109 register */
ret = dw210x_op_rw(d->udev, 0xc3, 0xd0, 0,
dw210x_op_rw(d->udev, 0xc3, 0xd0, 0,
buf6, msg[1].len + 2, DW210X_READ_MSG);
memcpy(msg[1].buf, buf6 + 2, msg[1].len);

Expand All @@ -250,19 +249,19 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
buf6[0] = msg[0].addr << 1;
buf6[1] = msg[0].len;
memcpy(buf6 + 2, msg[0].buf, msg[0].len);
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0, buf6,
dw210x_op_rw(d->udev, 0xc2, 0, 0, buf6,
msg[0].len + 2, DW210X_WRITE_MSG);
break;
case(DW2102_RC_QUERY):
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
buf6, 2, DW210X_READ_MSG);
msg[0].buf[0] = buf6[0];
msg[0].buf[1] = buf6[1];
break;
case(DW2102_VOLTAGE_CTRL):
buf6[0] = 0x30;
buf6[1] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
buf6, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -276,7 +275,6 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int ret = 0;

if (!d)
return -ENODEV;
Expand All @@ -291,10 +289,10 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
obuf[0] = msg[0].addr << 1;
obuf[1] = msg[0].len;
obuf[2] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[0].len + 2, DW210X_WRITE_MSG);
/* second read registers */
ret = dw210x_op_rw(d->udev, 0xc3, 0xd1 , 0,
dw210x_op_rw(d->udev, 0xc3, 0xd1 , 0,
ibuf, msg[1].len + 2, DW210X_READ_MSG);
memcpy(msg[1].buf, ibuf + 2, msg[1].len);

Expand All @@ -308,7 +306,7 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
obuf[0] = msg[0].addr << 1;
obuf[1] = msg[0].len;
memcpy(obuf + 2, msg[0].buf, msg[0].len);
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[0].len + 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -318,13 +316,13 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
obuf[0] = msg[0].addr << 1;
obuf[1] = msg[0].len;
memcpy(obuf + 2, msg[0].buf, msg[0].len);
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[0].len + 2, DW210X_WRITE_MSG);
break;
}
case(DW2102_RC_QUERY): {
u8 ibuf[2];
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
ibuf, 2, DW210X_READ_MSG);
memcpy(msg[0].buf, ibuf , 2);
break;
Expand All @@ -333,7 +331,7 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
u8 obuf[2];
obuf[0] = 0x30;
obuf[1] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
obuf, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -349,7 +347,6 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int ret = 0;
int len, i, j;

if (!d)
Expand All @@ -361,7 +358,7 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
switch (msg[j].addr) {
case(DW2102_RC_QUERY): {
u8 ibuf[2];
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
ibuf, 2, DW210X_READ_MSG);
memcpy(msg[j].buf, ibuf , 2);
break;
Expand All @@ -370,7 +367,7 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
u8 obuf[2];
obuf[0] = 0x30;
obuf[1] = msg[j].buf[0];
ret = dw210x_op_rw(d->udev, 0xb2, 0, 0,
dw210x_op_rw(d->udev, 0xb2, 0, 0,
obuf, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -382,7 +379,7 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
if (msg[j].flags == I2C_M_RD) {
/* read registers */
u8 ibuf[msg[j].len + 2];
ret = dw210x_op_rw(d->udev, 0xc3,
dw210x_op_rw(d->udev, 0xc3,
(msg[j].addr << 1) + 1, 0,
ibuf, msg[j].len + 2,
DW210X_READ_MSG);
Expand All @@ -402,7 +399,7 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
do {
memcpy(obuf + 3, msg[j].buf + i,
(len > 16 ? 16 : len));
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, (len > 16 ? 16 : len) + 3,
DW210X_WRITE_MSG);
i += 16;
Expand All @@ -414,7 +411,7 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
obuf[0] = msg[j].addr << 1;
obuf[1] = msg[j].len;
memcpy(obuf + 2, msg[j].buf, msg[j].len);
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[j].len + 2,
DW210X_WRITE_MSG);
}
Expand All @@ -432,7 +429,7 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int ret = 0, i;
int i;

if (!d)
return -ENODEV;
Expand All @@ -447,10 +444,10 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
obuf[0] = msg[0].addr << 1;
obuf[1] = msg[0].len;
obuf[2] = msg[0].buf[0];
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[0].len + 2, DW210X_WRITE_MSG);
/* second read registers */
ret = dw210x_op_rw(d->udev, 0xc3, 0x19 , 0,
dw210x_op_rw(d->udev, 0xc3, 0x19 , 0,
ibuf, msg[1].len + 2, DW210X_READ_MSG);
memcpy(msg[1].buf, ibuf + 2, msg[1].len);

Expand All @@ -465,13 +462,13 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
obuf[0] = msg[0].addr << 1;
obuf[1] = msg[0].len;
memcpy(obuf + 2, msg[0].buf, msg[0].len);
ret = dw210x_op_rw(d->udev, 0xc2, 0, 0,
dw210x_op_rw(d->udev, 0xc2, 0, 0,
obuf, msg[0].len + 2, DW210X_WRITE_MSG);
break;
}
case(DW2102_RC_QUERY): {
u8 ibuf[2];
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
ibuf, 2, DW210X_READ_MSG);
memcpy(msg[0].buf, ibuf , 2);
break;
Expand All @@ -496,7 +493,6 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
struct usb_device *udev;
int ret = 0;
int len, i, j;

if (!d)
Expand All @@ -509,7 +505,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
switch (msg[j].addr) {
case (DW2102_RC_QUERY): {
u8 ibuf[5];
ret = dw210x_op_rw(d->udev, 0xb8, 0, 0,
dw210x_op_rw(d->udev, 0xb8, 0, 0,
ibuf, 5, DW210X_READ_MSG);
memcpy(msg[j].buf, ibuf + 3, 2);
break;
Expand All @@ -519,11 +515,11 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],

obuf[0] = 1;
obuf[1] = msg[j].buf[1];/* off-on */
ret = dw210x_op_rw(d->udev, 0x8a, 0, 0,
dw210x_op_rw(d->udev, 0x8a, 0, 0,
obuf, 2, DW210X_WRITE_MSG);
obuf[0] = 3;
obuf[1] = msg[j].buf[0];/* 13v-18v */
ret = dw210x_op_rw(d->udev, 0x8a, 0, 0,
dw210x_op_rw(d->udev, 0x8a, 0, 0,
obuf, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -532,7 +528,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],

obuf[0] = 5;
obuf[1] = msg[j].buf[0];
ret = dw210x_op_rw(d->udev, 0x8a, 0, 0,
dw210x_op_rw(d->udev, 0x8a, 0, 0,
obuf, 2, DW210X_WRITE_MSG);
break;
}
Expand All @@ -545,7 +541,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
if (msg[j].flags == I2C_M_RD) {
/* read registers */
u8 ibuf[msg[j].len];
ret = dw210x_op_rw(d->udev, 0x91, 0, 0,
dw210x_op_rw(d->udev, 0x91, 0, 0,
ibuf, msg[j].len,
DW210X_READ_MSG);
memcpy(msg[j].buf, ibuf, msg[j].len);
Expand All @@ -563,7 +559,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
do {
memcpy(obuf + 3, msg[j].buf + i,
(len > 16 ? 16 : len));
ret = dw210x_op_rw(d->udev, 0x80, 0, 0,
dw210x_op_rw(d->udev, 0x80, 0, 0,
obuf, (len > 16 ? 16 : len) + 3,
DW210X_WRITE_MSG);
i += 16;
Expand All @@ -575,7 +571,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
obuf[0] = msg[j + 1].len;
obuf[1] = (msg[j].addr << 1);
memcpy(obuf + 2, msg[j].buf, msg[j].len);
ret = dw210x_op_rw(d->udev,
dw210x_op_rw(d->udev,
udev->descriptor.idProduct ==
0x7500 ? 0x92 : 0x90, 0, 0,
obuf, msg[j].len + 2,
Expand All @@ -587,7 +583,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
obuf[0] = msg[j].len + 1;
obuf[1] = (msg[j].addr << 1);
memcpy(obuf + 2, msg[j].buf, msg[j].len);
ret = dw210x_op_rw(d->udev, 0x80, 0, 0,
dw210x_op_rw(d->udev, 0x80, 0, 0,
obuf, msg[j].len + 2,
DW210X_WRITE_MSG);
break;
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