[media] dw2102: fix compile warnings

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>

1 files changed, 36 insertions, 40 deletions

diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c
index 451c5a7adfb2..9382895b1b88 100644
--- a/drivers/media/dvb/dvb-usb/dw2102.c
+++ b/drivers/media/dvb/dvb-usb/dw2102.c
@@ -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;
 
@@ -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];
                 }
@@ -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:
@@ -187,17 +187,17 @@ 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];
@@ -205,7 +205,7 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
                 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;
                 }
@@ -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)
@@ -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);
 
@@ -250,11 +249,11 @@ 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];
@@ -262,7 +261,7 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap,
                 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;
                 }
@@ -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;
@@ -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);
 
@@ -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;
                 }
@@ -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;
@@ -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;
                 }
@@ -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)
@@ -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;
@@ -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;
                 }
@@ -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);
@@ -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;
@@ -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);
                         }
@@ -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;
@@ -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);
 
@@ -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;
@@ -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)
@@ -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;
@@ -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;
                 }
@@ -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;
                 }
@@ -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);
@@ -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;
@@ -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,
@@ -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;